121879464 has 96 divisors (see below), whose sum is σ = 360468000. Its totient is φ = 34231680.

The previous prime is 121879463. The next prime is 121879469. The reversal of 121879464 is 464978121.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (121879463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70887 + ... + 72585.

It is an arithmetic number, because the mean of its divisors is an integer number (3754875).

Almost surely, 2^121879464 is an apocalyptic number.

121879464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121879464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180234000).

121879464 is an abundant number, since it is smaller than the sum of its proper divisors (238588536).

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

121879464 is a wasteful number, since it uses less digits than its factorization.

121879464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783 (or 1772 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 121879464 is about 11039.9032604457. The cubic root of 121879464 is about 495.8041739100.

The spelling of 121879464 in words is "one hundred twenty-one million, eight hundred seventy-nine thousand, four hundred sixty-four".