33401730 has 32 divisors (see below), whose sum is σ = 80481600. Its totient is φ = 8871872.

The previous prime is 33401723. The next prime is 33401747. The reversal of 33401730 is 3710433.

It is a super-2 number, since 2×33401730² = 2231351133985800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33401697 and 33401706.

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, 6001 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (2515050).

Almost surely, 2^33401730 is an apocalyptic number.

33401730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33401730 is an abundant number, since it is smaller than the sum of its proper divisors (47079870).

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

33401730 is a wasteful number, since it uses less digits than its factorization.

33401730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 33401730 is about 5779.4229815787. The cubic root of 33401730 is about 322.0497653366.

The spelling of 33401730 in words is "thirty-three million, four hundred one thousand, seven hundred thirty".