33403120404 has 12 divisors (see below), whose sum is σ = 77940614304. Its totient is φ = 11134373464.

The previous prime is 33403120393. The next prime is 33403120417. The reversal of 33403120404 is 40402130433.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×33403120404² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391796672 + ... + 1391796695.

It is an arithmetic number, because the mean of its divisors is an integer number (6495051192).

Almost surely, 2^33403120404 is an apocalyptic number.

It is an amenable number.

33403120404 is an abundant number, since it is smaller than the sum of its proper divisors (44537493900).

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

33403120404 is a wasteful number, since it uses less digits than its factorization.

33403120404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783593374 (or 2783593372 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 33403120404 its reverse (40402130433), we get a palindrome (73805250837).

The spelling of 33403120404 in words is "thirty-three billion, four hundred three million, one hundred twenty thousand, four hundred four".