825242290 has 16 divisors (see below), whose sum is σ = 1485763200. Its totient is φ = 330024240.

The previous prime is 825242287. The next prime is 825242329. The reversal of 825242290 is 92242528.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85111 + ... + 94309.

It is an arithmetic number, because the mean of its divisors is an integer number (92860200).

Almost surely, 2^825242290 is an apocalyptic number.

825242290 is a deficient number, since it is larger than the sum of its proper divisors (660520910).

825242290 is a wasteful number, since it uses less digits than its factorization.

825242290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18177.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 825242290 is about 28727.0306505911. The cubic root of 825242290 is about 937.9805332664.

The spelling of 825242290 in words is "eight hundred twenty-five million, two hundred forty-two thousand, two hundred ninety".