90438162 has 32 divisors (see below), whose sum is σ = 189637632. Its totient is φ = 28698384.

The previous prime is 90438133. The next prime is 90438343. The reversal of 90438162 is 26183409.

It is a super-2 number, since 2×90438162² = 16358122291876488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29883 + ... + 32769.

It is an arithmetic number, because the mean of its divisors is an integer number (5926176).

Almost surely, 2^90438162 is an apocalyptic number.

90438162 is an abundant number, since it is smaller than the sum of its proper divisors (99199470).

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

90438162 is a wasteful number, since it uses less digits than its factorization.

90438162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 90438162 is about 9509.8981067097. The cubic root of 90438162 is about 448.8665499572.

It can be divided in two parts, 9043 and 8162, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 90438162 in words is "ninety million, four hundred thirty-eight thousand, one hundred sixty-two".