33669040 has 40 divisors (see below), whose sum is σ = 78619968. Its totient is φ = 13409280.

The previous prime is 33669023. The next prime is 33669047. The reversal of 33669040 is 4096633.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33669040² = 2267208509043200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 33668993 and 33669011.

It is not an unprimeable number, because it can be changed into a prime (33669047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20904 + ... + 22456.

Almost surely, 2^33669040 is an apocalyptic number.

It is an amenable number.

33669040 is an abundant number, since it is smaller than the sum of its proper divisors (44950928).

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

33669040 is a wasteful number, since it uses less digits than its factorization.

33669040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1831 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 33669040 is about 5802.5029082285. The cubic root of 33669040 is about 322.9065921149.

The spelling of 33669040 in words is "thirty-three million, six hundred sixty-nine thousand, forty".