240121921850400 has 72 divisors (see below), whose sum is σ = 781596855630864. Its totient is φ = 64032512492800.

The previous prime is 240121921850351. The next prime is 240121921850407. The reversal of 240121921850400 is 4058129121042.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (240121921850407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50025397986 + ... + 50025402785.

It is an arithmetic number, because the mean of its divisors is an integer number (10855511883762).

Almost surely, 2^{240121921850400} is an apocalyptic number.

240121921850400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240121921850400 is an abundant number, since it is smaller than the sum of its proper divisors (541474933780464).

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

240121921850400 is a wasteful number, since it uses less digits than its factorization.

240121921850400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100050800794 (or 100050800781 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 240121921850400 in words is "two hundred forty trillion, one hundred twenty-one billion, nine hundred twenty-one million, eight hundred fifty thousand, four hundred".