856754190 has 48 divisors (see below), whose sum is σ = 2231186256. Its totient is φ = 228096000.

The previous prime is 856754189. The next prime is 856754191. The reversal of 856754190 is 91457658.

It is an interprime number because it is at equal distance from previous prime (856754189) and next prime (856754191).

It is a super-2 number, since 2×856754190² = 1468055484165112200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856754191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50265 + ... + 65115.

It is an arithmetic number, because the mean of its divisors is an integer number (46483047).

Almost surely, 2^856754190 is an apocalyptic number.

856754190 is an abundant number, since it is smaller than the sum of its proper divisors (1374432066).

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

856754190 is a wasteful number, since it uses less digits than its factorization.

856754190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15505 (or 15502 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 856754190 is about 29270.3636806925. The cubic root of 856754190 is about 949.7706519300.

The spelling of 856754190 in words is "eight hundred fifty-six million, seven hundred fifty-four thousand, one hundred ninety".