121904880 has 40 divisors (see below), whose sum is σ = 377905872. Its totient is φ = 32507904.

The previous prime is 121904873. The next prime is 121904891. The reversal of 121904880 is 88409121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253729 + ... + 254208.

Almost surely, 2^121904880 is an apocalyptic number.

121904880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121904880 is an abundant number, since it is smaller than the sum of its proper divisors (256000992).

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

121904880 is a wasteful number, since it uses less digits than its factorization.

121904880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507953 (or 507947 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 121904880 is about 11041.0542974845. The cubic root of 121904880 is about 495.8386355073.

The spelling of 121904880 in words is "one hundred twenty-one million, nine hundred four thousand, eight hundred eighty".