405425092900 has 81 divisors (see below), whose sum is σ = 902334705433. Its totient is φ = 158112793600.

The previous prime is 405425092861. The next prime is 405425092913. The reversal of 405425092900 is 9290524504.

The square root of 405425092900 is 636730.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 349202992356 + 56222100544 = 590934^2 + 237112^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 261058524 + ... + 261060076.

Almost surely, 2^405425092900 is an apocalyptic number.

405425092900 is the 636730-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405425092900

405425092900 is an abundant number, since it is smaller than the sum of its proper divisors (496909612533).

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

405425092900 is an equidigital number, since it uses as much as digits as its factorization.

405425092900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 405425092900 in words is "four hundred five billion, four hundred twenty-five million, ninety-two thousand, nine hundred".