118974420 has 90 divisors (see below), whose sum is σ = 374609466. Its totient is φ = 31609440.

The previous prime is 118974413. The next prime is 118974463. The reversal of 118974420 is 24479811.

It can be written as a sum of positive squares in only one way, i.e., 95179536 + 23794884 = 9756^2 + 4878^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×118974420² = 28309825228672800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 438885 + ... + 439155.

Almost surely, 2^118974420 is an apocalyptic number.

118974420 is a gapful number since it is divisible by the number (10) 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 118974420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187304733).

118974420 is an abundant number, since it is smaller than the sum of its proper divisors (255635046).

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

118974420 is an equidigital number, since it uses as much as digits as its factorization.

118974420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 118974420 is about 10907.5395942440. The cubic root of 118974420 is about 491.8332272353.

The spelling of 118974420 in words is "one hundred eighteen million, nine hundred seventy-four thousand, four hundred twenty".