90245722 has 16 divisors (see below), whose sum is σ = 156241152. Its totient is φ = 38293200.

The previous prime is 90245713. The next prime is 90245723. The reversal of 90245722 is 22754209.

It is not an unprimeable number, because it can be changed into a prime (90245723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30498 + ... + 33325.

It is an arithmetic number, because the mean of its divisors is an integer number (9765072).

Almost surely, 2^90245722 is an apocalyptic number.

90245722 is a deficient number, since it is larger than the sum of its proper divisors (65995430).

90245722 is a wasteful number, since it uses less digits than its factorization.

90245722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63933.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 90245722 is about 9499.7748394370. The cubic root of 90245722 is about 448.5479483932.

The spelling of 90245722 in words is "ninety million, two hundred forty-five thousand, seven hundred twenty-two".