402465032040 has 32 divisors (see below), whose sum is σ = 1207395096480. Its totient is φ = 107324008512.

The previous prime is 402465032029. The next prime is 402465032089. The reversal of 402465032040 is 40230564204.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 402465031989 and 402465032007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1676937514 + ... + 1676937753.

It is an arithmetic number, because the mean of its divisors is an integer number (37731096765).

Almost surely, 2^402465032040 is an apocalyptic number.

402465032040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402465032040 is an abundant number, since it is smaller than the sum of its proper divisors (804930064440).

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

402465032040 is a wasteful number, since it uses less digits than its factorization.

402465032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353875281 (or 3353875277 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 402465032040 its reverse (40230564204), we get a palindrome (442695596244).

The spelling of 402465032040 in words is "four hundred two billion, four hundred sixty-five million, thirty-two thousand, forty".