33390490 has 32 divisors (see below), whose sum is σ = 69022080. Its totient is φ = 11392704.

The previous prime is 33390473. The next prime is 33390491. The reversal of 33390490 is 9409333.

It is a super-2 number, since 2×33390490² = 2229849644880200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33390491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14989 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (2156940).

Almost surely, 2^33390490 is an apocalyptic number.

33390490 is an abundant number, since it is smaller than the sum of its proper divisors (35631590).

33390490 is a wasteful number, since it uses less digits than its factorization.

33390490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 33390490 is about 5778.4504843427. The cubic root of 33390490 is about 322.0136370136.

The spelling of 33390490 in words is "thirty-three million, three hundred ninety thousand, four hundred ninety".