1142460 has 72 divisors (see below), whose sum is σ = 3787056. Its totient is φ = 276480.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142460 is 642411.

1142460 = T₄₇₃ + T₄₇₄ + ... + T₄₈₂.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1692 + ... + 2268.

It is an arithmetic number, because the mean of its divisors is an integer number (52598).

2^1142460 is an apocalyptic number.

1142460 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 1142460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1893528).

1142460 is an abundant number, since it is smaller than the sum of its proper divisors (2644596).

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

1142460 is a wasteful number, since it uses less digits than its factorization.

1142460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1142460 is about 1068.8592049470. The cubic root of 1142460 is about 104.5394797525.

Adding to 1142460 its reverse (642411), we get a palindrome (1784871).

The spelling of 1142460 in words is "one million, one hundred forty-two thousand, four hundred sixty".