405552253240 has 64 divisors (see below), whose sum is σ = 914919559200. Its totient is φ = 161789962752.

The previous prime is 405552253229. The next prime is 405552253259. The reversal of 405552253240 is 42352255504.

It is a self number, because there is not a number n which added to its sum of digits gives 405552253240.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 27669754 + ... + 27684406.

Almost surely, 2^405552253240 is an apocalyptic number.

405552253240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

405552253240 is an abundant number, since it is smaller than the sum of its proper divisors (509367305960).

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

405552253240 is a wasteful number, since it uses less digits than its factorization.

405552253240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16456 (or 16452 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 405552253240 in words is "four hundred five billion, five hundred fifty-two million, two hundred fifty-three thousand, two hundred forty".