90749248 has 28 divisors (see below), whose sum is σ = 180502560. Its totient is φ = 45268352.

The previous prime is 90749227. The next prime is 90749249. The reversal of 90749248 is 84294709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90749249) 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 3 ways as a sum of consecutive naturals, for example, 30783 + ... + 33601.

It is an arithmetic number, because the mean of its divisors is an integer number (6446520).

Almost surely, 2^90749248 is an apocalyptic number.

It is an amenable number.

90749248 is a deficient number, since it is larger than the sum of its proper divisors (89753312).

90749248 is a wasteful number, since it uses less digits than its factorization.

90749248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334 (or 3324 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 90749248 is about 9526.2399717832. The cubic root of 90749248 is about 449.3806260825.

The spelling of 90749248 in words is "ninety million, seven hundred forty-nine thousand, two hundred forty-eight".