90940064 has 24 divisors (see below), whose sum is σ = 180249300. Its totient is φ = 45162496.

The previous prime is 90940051. The next prime is 90940079. The reversal of 90940064 is 46004909.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65739664 + 25200400 = 8108^2 + 5020^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 90940064.

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, 4769 + ... + 14304.

Almost surely, 2^90940064 is an apocalyptic number.

It is an amenable number.

90940064 is a deficient number, since it is larger than the sum of its proper divisors (89309236).

90940064 is a wasteful number, since it uses less digits than its factorization.

90940064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19232 (or 19224 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 90940064 is about 9536.2499967230. The cubic root of 90940064 is about 449.6953724297.

The spelling of 90940064 in words is "ninety million, nine hundred forty thousand, sixty-four".