90239250 has 32 divisors (see below), whose sum is σ = 225239040. Its totient is φ = 24063600.

The previous prime is 90239249. The next prime is 90239257. The reversal of 90239250 is 5293209.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (90239257) 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 15 ways as a sum of consecutive naturals, for example, 59410 + ... + 60909.

It is an arithmetic number, because the mean of its divisors is an integer number (7038720).

Almost surely, 2^90239250 is an apocalyptic number.

90239250 is an abundant number, since it is smaller than the sum of its proper divisors (134999790).

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

90239250 is a wasteful number, since it uses less digits than its factorization.

90239250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120339 (or 120329 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 90239250 is about 9499.4341936770. The cubic root of 90239250 is about 448.5372255517.

The spelling of 90239250 in words is "ninety million, two hundred thirty-nine thousand, two hundred fifty".