195373990 has 16 divisors (see below), whose sum is σ = 401912352. Its totient is φ = 66985344.

The previous prime is 195373987. The next prime is 195373991. The reversal of 195373990 is 99373591.

It is a self number, because there is not a number n which added to its sum of digits gives 195373990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195373991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1395459 + ... + 1395598.

It is an arithmetic number, because the mean of its divisors is an integer number (25119522).

Almost surely, 2^195373990 is an apocalyptic number.

195373990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195373990 is an abundant number, since it is smaller than the sum of its proper divisors (206538362).

195373990 is a wasteful number, since it uses less digits than its factorization.

195373990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791071.

The product of its (nonzero) digits is 229635, while the sum is 46.

The square root of 195373990 is about 13977.6246193693. The cubic root of 195373990 is about 580.2594855564.

The spelling of 195373990 in words is "one hundred ninety-five million, three hundred seventy-three thousand, nine hundred ninety".