33990464 has 14 divisors (see below), whose sum is σ = 67449954. Its totient is φ = 16995200.

The previous prime is 33990443. The next prime is 33990491. The reversal of 33990464 is 46409933.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 350464 = 5800^2 + 592^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265487 + ... + 265614.

Almost surely, 2^33990464 is an apocalyptic number.

It is an amenable number.

33990464 is a deficient number, since it is larger than the sum of its proper divisors (33459490).

33990464 is an equidigital number, since it uses as much as digits as its factorization.

33990464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531113 (or 531103 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 33990464 is about 5830.1341322477. The cubic root of 33990464 is about 323.9308901015.

The spelling of 33990464 in words is "thirty-three million, nine hundred ninety thousand, four hundred sixty-four".