90257436 has 24 divisors (see below), whose sum is σ = 234001040. Its totient is φ = 30085776.

The previous prime is 90257423. The next prime is 90257449. The reversal of 90257436 is 63475209.

It is an interprime number because it is at equal distance from previous prime (90257423) and next prime (90257449).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 90257436.

It is a congruent number.

It is an unprimeable number.

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, 417751 + ... + 417966.

Almost surely, 2^90257436 is an apocalyptic number.

It is an amenable number.

90257436 is an abundant number, since it is smaller than the sum of its proper divisors (143743604).

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

90257436 is a wasteful number, since it uses less digits than its factorization.

90257436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835730 (or 835722 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 90257436 is about 9500.3913603598. The cubic root of 90257436 is about 448.5673549025.

It can be divided in two parts, 9025 and 7436, that added together give a palindrome (16461).

The spelling of 90257436 in words is "ninety million, two hundred fifty-seven thousand, four hundred thirty-six".