91429444 has 12 divisors (see below), whose sum is σ = 168422800. Its totient is φ = 43308648.

The previous prime is 91429427. The next prime is 91429483. The reversal of 91429444 is 44492419.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601434 + ... + 601585.

Almost surely, 2^91429444 is an apocalyptic number.

It is an amenable number.

91429444 is a deficient number, since it is larger than the sum of its proper divisors (76993356).

91429444 is a wasteful number, since it uses less digits than its factorization.

91429444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203042 (or 1203040 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 91429444 is about 9561.8745024184. The cubic root of 91429444 is about 450.5005853233.

The spelling of 91429444 in words is "ninety-one million, four hundred twenty-nine thousand, four hundred forty-four".