1072140 has 48 divisors (see below), whose sum is σ = 3048192. Its totient is φ = 281536.

The previous prime is 1072133. The next prime is 1072147. The reversal of 1072140 is 412701.

It is an interprime number because it is at equal distance from previous prime (1072133) and next prime (1072147).

It is a super-2 number, since 2×1072140² = 2298968359200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1072147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6337 + ... + 6503.

It is an arithmetic number, because the mean of its divisors is an integer number (63504).

2^1072140 is an apocalyptic number.

1072140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1072140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524096).

1072140 is an abundant number, since it is smaller than the sum of its proper divisors (1976052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1072140 is a wasteful number, since it uses less digits than its factorization.

1072140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1072140 is about 1035.4419346347. The cubic root of 1072140 is about 102.3490540440.

Adding to 1072140 its reverse (412701), we get a palindrome (1484841).

The spelling of 1072140 in words is "one million, seventy-two thousand, one hundred forty".