402620024 has 32 divisors (see below), whose sum is σ = 766411200. Its totient is φ = 198257280.

The previous prime is 402620003. The next prime is 402620047. The reversal of 402620024 is 420026204.

It is a junction number, because it is equal to n+sod(n) for n = 402619978 and 402620005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427394 + ... + 428334.

It is an arithmetic number, because the mean of its divisors is an integer number (23950350).

Almost surely, 2^402620024 is an apocalyptic number.

It is an amenable number.

402620024 is a deficient number, since it is larger than the sum of its proper divisors (363791176).

402620024 is a wasteful number, since it uses less digits than its factorization.

402620024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 402620024 is about 20065.3936916274. The cubic root of 402620024 is about 738.4115085653.

Adding to 402620024 its reverse (420026204), we get a palindrome (822646228).

The spelling of 402620024 in words is "four hundred two million, six hundred twenty thousand, twenty-four".