121479400 has 48 divisors (see below), whose sum is σ = 322791840. Its totient is φ = 41649600.

The previous prime is 121479383. The next prime is 121479419. The reversal of 121479400 is 4974121.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 41986 + ... + 44785.

It is an arithmetic number, because the mean of its divisors is an integer number (6724830).

Almost surely, 2^121479400 is an apocalyptic number.

121479400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121479400 is an abundant number, since it is smaller than the sum of its proper divisors (201312440).

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

121479400 is a wasteful number, since it uses less digits than its factorization.

121479400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86794 (or 86785 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 121479400 is about 11021.7693679373. The cubic root of 121479400 is about 495.2610941054.

The spelling of 121479400 in words is "one hundred twenty-one million, four hundred seventy-nine thousand, four hundred".