194438480 has 30 divisors (see below), whose sum is σ = 452359626. Its totient is φ = 77725504.

The previous prime is 194438477. The next prime is 194438501. The reversal of 194438480 is 84834491.

194438480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 155550784 + 38887696 = 12472^2 + 6236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123941 + ... + 125499.

Almost surely, 2^194438480 is an apocalyptic number.

194438480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194438480 is an abundant number, since it is smaller than the sum of its proper divisors (257921146).

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

194438480 is an frugal number, since it uses more digits than its factorization.

194438480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131 (or 1566 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 194438480 is about 13944.1199076887. The cubic root of 194438480 is about 579.3318504964.

The spelling of 194438480 in words is "one hundred ninety-four million, four hundred thirty-eight thousand, four hundred eighty".