71952190 has 32 divisors (see below), whose sum is σ = 134693280. Its totient is φ = 27640704.

The previous prime is 71952169. The next prime is 71952191. The reversal of 71952190 is 9125917.

It is a super-2 number, since 2×71952190² = 10354235291592200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71952191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65284 + ... + 66376.

It is an arithmetic number, because the mean of its divisors is an integer number (4209165).

Almost surely, 2^71952190 is an apocalyptic number.

71952190 is a deficient number, since it is larger than the sum of its proper divisors (62741090).

71952190 is a wasteful number, since it uses less digits than its factorization.

71952190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 71952190 is about 8482.4636751359. The cubic root of 71952190 is about 415.9246619919.

The spelling of 71952190 in words is "seventy-one million, nine hundred fifty-two thousand, one hundred ninety".