33980690 has 16 divisors (see below), whose sum is σ = 61395840. Its totient is φ = 13541040.

The previous prime is 33980657. The next prime is 33980699. The reversal of 33980690 is 9608933.

It is a happy number.

It is a super-2 number, since 2×33980690² = 2309374585752200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33980699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3560 + ... + 8979.

It is an arithmetic number, because the mean of its divisors is an integer number (3837240).

Almost surely, 2^33980690 is an apocalyptic number.

33980690 is a deficient number, since it is larger than the sum of its proper divisors (27415150).

33980690 is a wasteful number, since it uses less digits than its factorization.

33980690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12817.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 33980690 is about 5829.2958408370. The cubic root of 33980690 is about 323.8998382155.

The spelling of 33980690 in words is "thirty-three million, nine hundred eighty thousand, six hundred ninety".