90439262 has 16 divisors (see below), whose sum is σ = 138803280. Its totient is φ = 44183232.

The previous prime is 90439241. The next prime is 90439267. The reversal of 90439262 is 26293409.

It is a super-2 number, since 2×90439262² = 16358520222209288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90439267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13073 + ... + 18755.

It is an arithmetic number, because the mean of its divisors is an integer number (8675205).

Almost surely, 2^90439262 is an apocalyptic number.

90439262 is a deficient number, since it is larger than the sum of its proper divisors (48364018).

90439262 is a wasteful number, since it uses less digits than its factorization.

90439262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 90439262 is about 9509.9559410126. The cubic root of 90439262 is about 448.8683698055.

The spelling of 90439262 in words is "ninety million, four hundred thirty-nine thousand, two hundred sixty-two".