90146724 has 24 divisors (see below), whose sum is σ = 211068480. Its totient is φ = 29945184.

The previous prime is 90146723. The next prime is 90146743. The reversal of 90146724 is 42764109.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (90146723) 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, 9304 + ... + 16335.

It is an arithmetic number, because the mean of its divisors is an integer number (8794520).

Almost surely, 2^90146724 is an apocalyptic number.

It is an amenable number.

90146724 is an abundant number, since it is smaller than the sum of its proper divisors (120921756).

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

90146724 is a wasteful number, since it uses less digits than its factorization.

90146724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25939 (or 25937 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 90146724 is about 9494.5628651350. The cubic root of 90146724 is about 448.3838719287.

The spelling of 90146724 in words is "ninety million, one hundred forty-six thousand, seven hundred twenty-four".