195477072 has 160 divisors (see below), whose sum is σ = 609484800. Its totient is φ = 53907840.

The previous prime is 195477059. The next prime is 195477077. The reversal of 195477072 is 270774591.

It is a super-2 number, since 2×195477072² = 76422571355386368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195477077) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510193 + ... + 510575.

It is an arithmetic number, because the mean of its divisors is an integer number (3809280).

Almost surely, 2^195477072 is an apocalyptic number.

195477072 is a gapful number since it is divisible by the number (12) 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 195477072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304742400).

195477072 is an abundant number, since it is smaller than the sum of its proper divisors (414007728).

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

195477072 is a wasteful number, since it uses less digits than its factorization.

195477072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 195477072 is about 13981.3115264627. The cubic root of 195477072 is about 580.3615185714.

The spelling of 195477072 in words is "one hundred ninety-five million, four hundred seventy-seven thousand, seventy-two".