1401452140 has 48 divisors (see below), whose sum is σ = 3231938304. Its totient is φ = 506232000.

The previous prime is 1401452113. The next prime is 1401452153. The reversal of 1401452140 is 412541041.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12127 + ... + 54313.

It is an arithmetic number, because the mean of its divisors is an integer number (67332048).

Almost surely, 2^1401452140 is an apocalyptic number.

1401452140 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 1401452140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1615969152).

1401452140 is an abundant number, since it is smaller than the sum of its proper divisors (1830486164).

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

1401452140 is a wasteful number, since it uses less digits than its factorization.

1401452140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42358 (or 42356 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1401452140 is about 37435.9738754049. The cubic root of 1401452140 is about 1119.0755924669.

Adding to 1401452140 its reverse (412541041), we get a palindrome (1813993181).

The spelling of 1401452140 in words is "one billion, four hundred one million, four hundred fifty-two thousand, one hundred forty".