90725244 has 48 divisors (see below), whose sum is σ = 217190400. Its totient is φ = 29465856.

The previous prime is 90725233. The next prime is 90725249. The reversal of 90725244 is 44252709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90725249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89412 + ... + 90420.

It is an arithmetic number, because the mean of its divisors is an integer number (4524800).

Almost surely, 2^90725244 is an apocalyptic number.

It is an amenable number.

90725244 is an abundant number, since it is smaller than the sum of its proper divisors (126465156).

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

90725244 is a wasteful number, since it uses less digits than its factorization.

90725244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 90725244 is about 9524.9799999790. The cubic root of 90725244 is about 449.3410008368.

The spelling of 90725244 in words is "ninety million, seven hundred twenty-five thousand, two hundred forty-four".