32990392 has 8 divisors (see below), whose sum is σ = 61857000. Its totient is φ = 16495192.

The previous prime is 32990389. The next prime is 32990393. The reversal of 32990392 is 29309923.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32990393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2061892 + ... + 2061907.

It is an arithmetic number, because the mean of its divisors is an integer number (7732125).

Almost surely, 2^32990392 is an apocalyptic number.

It is an amenable number.

32990392 is a deficient number, since it is larger than the sum of its proper divisors (28866608).

32990392 is a wasteful number, since it uses less digits than its factorization.

32990392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4123805 (or 4123801 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 32990392 is about 5743.7263165997. The cubic root of 32990392 is about 320.7223006953.

The spelling of 32990392 in words is "thirty-two million, nine hundred ninety thousand, three hundred ninety-two".