33972330 has 32 divisors (see below), whose sum is σ = 93181824. Its totient is φ = 7765056.

The previous prime is 33972329. The next prime is 33972343. The reversal of 33972330 is 3327933.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80677 + ... + 81096.

It is an arithmetic number, because the mean of its divisors is an integer number (2911932).

Almost surely, 2^33972330 is an apocalyptic number.

33972330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33972330 is an abundant number, since it is smaller than the sum of its proper divisors (59209494).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33972330 is a wasteful number, since it uses less digits than its factorization.

33972330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161790.

The product of its (nonzero) digits is 10206, while the sum is 30.

The square root of 33972330 is about 5828.5787289870. The cubic root of 33972330 is about 323.8732738664.

The spelling of 33972330 in words is "thirty-three million, nine hundred seventy-two thousand, three hundred thirty".