90277224540 has 24 divisors (see below), whose sum is σ = 252776228880. Its totient is φ = 24073926528.

The previous prime is 90277224539. The next prime is 90277224551. The reversal of 90277224540 is 4542277209.

It is a junction number, because it is equal to n+sod(n) for n = 90277224492 and 90277224501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752310145 + ... + 752310264.

It is an arithmetic number, because the mean of its divisors is an integer number (10532342870).

Almost surely, 2^90277224540 is an apocalyptic number.

It is an amenable number.

90277224540 is an abundant number, since it is smaller than the sum of its proper divisors (162499004340).

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

90277224540 is a wasteful number, since it uses less digits than its factorization.

90277224540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504620421 (or 1504620419 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The spelling of 90277224540 in words is "ninety billion, two hundred seventy-seven million, two hundred twenty-four thousand, five hundred forty".