33504340 has 12 divisors (see below), whose sum is σ = 70359156. Its totient is φ = 13401728.

The previous prime is 33504337. The next prime is 33504347. The reversal of 33504340 is 4340533.

It can be written as a sum of positive squares in 2 ways, for example, as 9709456 + 23794884 = 3116^2 + 4878^2 .

It is a super-2 number, since 2×33504340² = 2245081597671200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33504347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837589 + ... + 837628.

It is an arithmetic number, because the mean of its divisors is an integer number (5863263).

Almost surely, 2^33504340 is an apocalyptic number.

It is an amenable number.

33504340 is an abundant number, since it is smaller than the sum of its proper divisors (36854816).

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

33504340 is a wasteful number, since it uses less digits than its factorization.

33504340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675226 (or 1675224 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 33504340 is about 5788.2933581497. The cubic root of 33504340 is about 322.3792068104.

Adding to 33504340 its reverse (4340533), we get a palindrome (37844873).

The spelling of 33504340 in words is "thirty-three million, five hundred four thousand, three hundred forty".