831225790 has 16 divisors (see below), whose sum is σ = 1497106800. Its totient is φ = 332290240.

The previous prime is 831225781. The next prime is 831225797. The reversal of 831225790 is 97522138.

It is a super-2 number, since 2×831225790² = 1381872627922248200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831225797) 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, 6940 + ... + 41359.

It is an arithmetic number, because the mean of its divisors is an integer number (93569175).

Almost surely, 2^831225790 is an apocalyptic number.

831225790 is a deficient number, since it is larger than the sum of its proper divisors (665881010).

831225790 is a wasteful number, since it uses less digits than its factorization.

831225790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50027.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 831225790 is about 28830.9866289727. The cubic root of 831225790 is about 940.2420494823.

The spelling of 831225790 in words is "eight hundred thirty-one million, two hundred twenty-five thousand, seven hundred ninety".