90252470 has 128 divisors (see below), whose sum is σ = 221184000. Its totient is φ = 25660800.

The previous prime is 90252433. The next prime is 90252517. The reversal of 90252470 is 7425209.

It is a super-2 number, since 2×90252470² = 16291016682201800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 453431 + ... + 453629.

It is an arithmetic number, because the mean of its divisors is an integer number (1728000).

Almost surely, 2^90252470 is an apocalyptic number.

90252470 is an abundant number, since it is smaller than the sum of its proper divisors (130931530).

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

90252470 is a wasteful number, since it uses less digits than its factorization.

90252470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 90252470 is about 9500.1299991105. The cubic root of 90252470 is about 448.5591279669.

Adding to 90252470 its reverse (7425209), we get a palindrome (97677679).

The spelling of 90252470 in words is "ninety million, two hundred fifty-two thousand, four hundred seventy".