198174540 has 48 divisors (see below), whose sum is σ = 557141760. Its totient is φ = 52632000.

The previous prime is 198174521. The next prime is 198174577. The reversal of 198174540 is 45471891.

198174540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8481 + ... + 21639.

It is an arithmetic number, because the mean of its divisors is an integer number (11607120).

Almost surely, 2^198174540 is an apocalyptic number.

198174540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198174540 is an abundant number, since it is smaller than the sum of its proper divisors (358967220).

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

198174540 is a wasteful number, since it uses less digits than its factorization.

198174540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13422 (or 13420 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 198174540 is about 14077.4479221200. The cubic root of 198174540 is about 583.0188810430.

The spelling of 198174540 in words is "one hundred ninety-eight million, one hundred seventy-four thousand, five hundred forty".