90403132 has 6 divisors (see below), whose sum is σ = 158205488. Its totient is φ = 45201564.

The previous prime is 90403129. The next prime is 90403139. The reversal of 90403132 is 23130409.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90403139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11300388 + ... + 11300395.

Almost surely, 2^90403132 is an apocalyptic number.

It is an amenable number.

90403132 is a deficient number, since it is larger than the sum of its proper divisors (67802356).

90403132 is a wasteful number, since it uses less digits than its factorization.

90403132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22600787 (or 22600785 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 90403132 is about 9508.0561630651. The cubic root of 90403132 is about 448.8085883421.

The spelling of 90403132 in words is "ninety million, four hundred three thousand, one hundred thirty-two".