90577340 has 24 divisors (see below), whose sum is σ = 217385952. Its totient is φ = 31055040.

The previous prime is 90577303. The next prime is 90577349. The reversal of 90577340 is 4377509.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 90577340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90577349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323351 + ... + 323630.

It is an arithmetic number, because the mean of its divisors is an integer number (9057748).

Almost surely, 2^90577340 is an apocalyptic number.

It is an amenable number.

90577340 is an abundant number, since it is smaller than the sum of its proper divisors (126808612).

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

90577340 is a wasteful number, since it uses less digits than its factorization.

90577340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646997 (or 646995 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 90577340 is about 9517.2128272935. The cubic root of 90577340 is about 449.0966900066.

The spelling of 90577340 in words is "ninety million, five hundred seventy-seven thousand, three hundred forty".