72855190 has 8 divisors (see below), whose sum is σ = 131139360. Its totient is φ = 29142072.

The previous prime is 72855179. The next prime is 72855193. The reversal of 72855190 is 9155827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72855190² = 10615757419872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72855193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3642750 + ... + 3642769.

It is an arithmetic number, because the mean of its divisors is an integer number (16392420).

Almost surely, 2^72855190 is an apocalyptic number.

72855190 is a deficient number, since it is larger than the sum of its proper divisors (58284170).

72855190 is a wasteful number, since it uses less digits than its factorization.

72855190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285526.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 72855190 is about 8535.5251742350. The cubic root of 72855190 is about 417.6573850557.

The spelling of 72855190 in words is "seventy-two million, eight hundred fifty-five thousand, one hundred ninety".