33401205400 has 48 divisors (see below), whose sum is σ = 77676669000. Its totient is φ = 13357236480.

The previous prime is 33401205377. The next prime is 33401205421. The reversal of 33401205400 is 450210433.

It is a super-2 number, since 2×33401205400² (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 11 ways as a sum of consecutive naturals, for example, 911839 + ... + 947761.

Almost surely, 2^33401205400 is an apocalyptic number.

It is an amenable number.

33401205400 is an abundant number, since it is smaller than the sum of its proper divisors (44275463600).

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

33401205400 is a wasteful number, since it uses less digits than its factorization.

33401205400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40588 (or 40579 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 33401205400 its reverse (450210433), we get a palindrome (33851415833).

The spelling of 33401205400 in words is "thirty-three billion, four hundred one million, two hundred five thousand, four hundred".