90225592434 has 24 divisors (see below), whose sum is σ = 195494399100. Its totient is φ = 30074333568.

The previous prime is 90225592427. The next prime is 90225592439. The reversal of 90225592434 is 43429552209.

90225592434 is a `hidden beast` number, since 9 + 0 + 2 + 25 + 592 + 4 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 78931216809 + 11294375625 = 280947^2 + 106275^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 90225592434.

It is not an unprimeable number, because it can be changed into a prime (90225592439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1018342 + ... + 1103390.

Almost surely, 2^90225592434 is an apocalyptic number.

90225592434 is an abundant number, since it is smaller than the sum of its proper divisors (105268806666).

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

90225592434 is a wasteful number, since it uses less digits than its factorization.

90225592434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143994 (or 143991 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 90225592434 in words is "ninety billion, two hundred twenty-five million, five hundred ninety-two thousand, four hundred thirty-four".