402044024 has 32 divisors (see below), whose sum is σ = 762048000. Its totient is φ = 198844512.

The previous prime is 402044021. The next prime is 402044039. The reversal of 402044024 is 420440204.

It is a super-2 number, since 2×402044024² = 323278794468225152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402043987 and 402044005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402044021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318707 + ... + 319965.

It is an arithmetic number, because the mean of its divisors is an integer number (23814000).

Almost surely, 2^402044024 is an apocalyptic number.

It is an amenable number.

402044024 is a deficient number, since it is larger than the sum of its proper divisors (360003976).

402044024 is a wasteful number, since it uses less digits than its factorization.

402044024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 402044024 is about 20051.0354844831. The cubic root of 402044024 is about 738.0592094641.

Adding to 402044024 its reverse (420440204), we get a palindrome (822484228).

The spelling of 402044024 in words is "four hundred two million, forty-four thousand, twenty-four".