405136552422 has 64 divisors (see below), whose sum is σ = 969881195520. Its totient is φ = 110308877184.

The previous prime is 405136552397. The next prime is 405136552423. The reversal of 405136552422 is 224255631504.

It is a super-2 number, since 2×405136552422² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405136552423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 519693 + ... + 1039400.

It is an arithmetic number, because the mean of its divisors is an integer number (15154393680).

Almost surely, 2^405136552422 is an apocalyptic number.

405136552422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

405136552422 is an abundant number, since it is smaller than the sum of its proper divisors (564744643098).

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

405136552422 is a wasteful number, since it uses less digits than its factorization.

405136552422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559397.

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 405136552422 in words is "four hundred five billion, one hundred thirty-six million, five hundred fifty-two thousand, four hundred twenty-two".