33290490 has 32 divisors (see below), whose sum is σ = 80061696. Its totient is φ = 8859200.

The previous prime is 33290479. The next prime is 33290501. The reversal of 33290490 is 9409233.

It is an interprime number because it is at equal distance from previous prime (33290479) and next prime (33290501).

It is a super-2 number, since 2×33290490² = 2216513448880200, which contains 22 as substring.

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

It is an unprimeable number.

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, 20239 + ... + 21821.

It is an arithmetic number, because the mean of its divisors is an integer number (2501928).

Almost surely, 2^33290490 is an apocalyptic number.

33290490 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33290490 is an abundant number, since it is smaller than the sum of its proper divisors (46771206).

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

33290490 is a wasteful number, since it uses less digits than its factorization.

33290490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 33290490 is about 5769.7911573990. The cubic root of 33290490 is about 321.6918531410.

The spelling of 33290490 in words is "thirty-three million, two hundred ninety thousand, four hundred ninety".