90655340 has 12 divisors (see below), whose sum is σ = 190376256. Its totient is φ = 36262128.

The previous prime is 90655321. The next prime is 90655349. The reversal of 90655340 is 4355609.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90655297 and 90655306.

It is not an unprimeable number, because it can be changed into a prime (90655349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2266364 + ... + 2266403.

It is an arithmetic number, because the mean of its divisors is an integer number (15864688).

Almost surely, 2^90655340 is an apocalyptic number.

It is an amenable number.

90655340 is an abundant number, since it is smaller than the sum of its proper divisors (99720916).

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

90655340 is a wasteful number, since it uses less digits than its factorization.

90655340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532776 (or 4532774 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 90655340 is about 9521.3097838480. The cubic root of 90655340 is about 449.2255651074.

The spelling of 90655340 in words is "ninety million, six hundred fifty-five thousand, three hundred forty".