90994132 has 24 divisors (see below), whose sum is σ = 170289000. Its totient is φ = 42393600.

The previous prime is 90994109. The next prime is 90994133. The reversal of 90994132 is 23149909.

It can be written as a sum of positive squares in 4 ways, for example, as 38489616 + 52504516 = 6204^2 + 7246^2 .

It is a junction number, because it is equal to n+sod(n) for n = 90994091 and 90994100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90994133) 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, 244 + ... + 13492.

It is an arithmetic number, because the mean of its divisors is an integer number (7095375).

Almost surely, 2^90994132 is an apocalyptic number.

It is an amenable number.

90994132 is a deficient number, since it is larger than the sum of its proper divisors (79294868).

90994132 is a wasteful number, since it uses less digits than its factorization.

90994132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13371 (or 13369 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 90994132 is about 9539.0844424400. The cubic root of 90994132 is about 449.7844762170.

It can be divided in two parts, 9099 and 4132, that added together give a palindrome (13231).

The spelling of 90994132 in words is "ninety million, nine hundred ninety-four thousand, one hundred thirty-two".