1952198172 has 60 divisors (see below), whose sum is σ = 5108297656. Its totient is φ = 650112480.

The previous prime is 1952198141. The next prime is 1952198197. The reversal of 1952198172 is 2718912591.

It is a super-2 number, since 2×1952198172² = 7622155405520283168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 445263 + ... + 449625.

Almost surely, 2^1952198172 is an apocalyptic number.

1952198172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1952198172 is an abundant number, since it is smaller than the sum of its proper divisors (3156099484).

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

1952198172 is a wasteful number, since it uses less digits than its factorization.

1952198172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5749 counting only the distinct ones).

The product of its digits is 90720, while the sum is 45.

The square root of 1952198172 is about 44183.6867180637. The cubic root of 1952198172 is about 1249.8022454095.

The spelling of 1952198172 in words is "one billion, nine hundred fifty-two million, one hundred ninety-eight thousand, one hundred seventy-two".