90655042 has 24 divisors (see below), whose sum is σ = 144388332. Its totient is φ = 42681600.

The previous prime is 90655031. The next prime is 90655043. The reversal of 90655042 is 24055609.

It can be written as a sum of positive squares in 2 ways, for example, as 90611361 + 43681 = 9519^2 + 209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90654995 and 90655013.

It is not an unprimeable number, because it can be changed into a prime (90655043) 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, 173742 + ... + 174262.

Almost surely, 2^90655042 is an apocalyptic number.

90655042 is a deficient number, since it is larger than the sum of its proper divisors (53733290).

90655042 is a wasteful number, since it uses less digits than its factorization.

90655042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 90655042 is about 9521.2941347277. The cubic root of 90655042 is about 449.2250728792.

The spelling of 90655042 in words is "ninety million, six hundred fifty-five thousand, forty-two".