402410540 has 36 divisors (see below), whose sum is σ = 983033856. Its totient is φ = 137968992.

The previous prime is 402410539. The next prime is 402410551. The reversal of 402410540 is 45014204.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204332 + ... + 206291.

It is an arithmetic number, because the mean of its divisors is an integer number (27306496).

Almost surely, 2^402410540 is an apocalyptic number.

It is an amenable number.

402410540 is an abundant number, since it is smaller than the sum of its proper divisors (580623316).

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

402410540 is a wasteful number, since it uses less digits than its factorization.

402410540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410646 (or 410637 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 402410540 is about 20060.1729803110. The cubic root of 402410540 is about 738.2834206886.

Adding to 402410540 its reverse (45014204), we get a palindrome (447424744).

The spelling of 402410540 in words is "four hundred two million, four hundred ten thousand, five hundred forty".