90648250 has 128 divisors (see below), whose sum is σ = 224819712. Its totient is φ = 26496000.

The previous prime is 90648227. The next prime is 90648251. The reversal of 90648250 is 5284609.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90648251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 327112 + ... + 327388.

It is an arithmetic number, because the mean of its divisors is an integer number (1756404).

Almost surely, 2^90648250 is an apocalyptic number.

90648250 is an abundant number, since it is smaller than the sum of its proper divisors (134171462).

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

90648250 is a wasteful number, since it uses less digits than its factorization.

90648250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 90648250 is about 9520.9374538435. The cubic root of 90648250 is about 449.2138537463.

The spelling of 90648250 in words is "ninety million, six hundred forty-eight thousand, two hundred fifty".