1020402624 has 28 divisors (see below), whose sum is σ = 2699815784. Its totient is φ = 340134144.

The previous prime is 1020402601. The next prime is 1020402641. The reversal of 1020402624 is 4262040201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020402624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2657107 + ... + 2657490.

Almost surely, 2^1020402624 is an apocalyptic number.

It is an amenable number.

1020402624 is an abundant number, since it is smaller than the sum of its proper divisors (1679413160).

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

1020402624 is an equidigital number, since it uses as much as digits as its factorization.

1020402624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5314612 (or 5314602 counting only the distinct ones).

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

The square root of 1020402624 is about 31943.7415466629. The cubic root of 1020402624 is about 1006.7551400002.

Adding to 1020402624 its reverse (4262040201), we get a palindrome (5282442825).

The spelling of 1020402624 in words is "one billion, twenty million, four hundred two thousand, six hundred twenty-four".