118929420 has 36 divisors (see below), whose sum is σ = 360753120. Its totient is φ = 31714464.

The previous prime is 118929407. The next prime is 118929439. The reversal of 118929420 is 24929811.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 330180 + ... + 330539.

It is an arithmetic number, because the mean of its divisors is an integer number (10020920).

Almost surely, 2^118929420 is an apocalyptic number.

118929420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118929420 is an abundant number, since it is smaller than the sum of its proper divisors (241823700).

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

118929420 is a wasteful number, since it uses less digits than its factorization.

118929420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660734 (or 660729 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 118929420 is about 10905.4766058160. The cubic root of 118929420 is about 491.7712103014.

It can be divided in two parts, 11892 and 9420, that added together give a palindrome (21312).

The spelling of 118929420 in words is "one hundred eighteen million, nine hundred twenty-nine thousand, four hundred twenty".