1401042432 has 160 divisors (see below), whose sum is σ = 3924391680. Its totient is φ = 443555840.

The previous prime is 1401042421. The next prime is 1401042443. The reversal of 1401042432 is 2342401041.

It is an interprime number because it is at equal distance from previous prime (1401042421) and next prime (1401042443).

It is a junction number, because it is equal to n+sod(n) for n = 1401042399 and 1401042408.

It is a congruent number.

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, 3162403 + ... + 3162845.

It is an arithmetic number, because the mean of its divisors is an integer number (24527448).

Almost surely, 2^1401042432 is an apocalyptic number.

1401042432 is a gapful number since it is divisible by the number (12) 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 1401042432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962195840).

1401042432 is an abundant number, since it is smaller than the sum of its proper divisors (2523349248).

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

1401042432 is an equidigital number, since it uses as much as digits as its factorization.

1401042432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1401042432 is about 37430.5013591857. The cubic root of 1401042432 is about 1118.9665296607.

Adding to 1401042432 its reverse (2342401041), we get a palindrome (3743443473).

The spelling of 1401042432 in words is "one billion, four hundred one million, forty-two thousand, four hundred thirty-two".