291025482 has 32 divisors (see below), whose sum is σ = 672318144. Its totient is φ = 83001600.

The previous prime is 291025477. The next prime is 291025487. The reversal of 291025482 is 284520192.

It is an interprime number because it is at equal distance from previous prime (291025477) and next prime (291025487).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (291025487) 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, 128569 + ... + 130812.

It is an arithmetic number, because the mean of its divisors is an integer number (21009942).

Almost surely, 2^291025482 is an apocalyptic number.

291025482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

291025482 is an abundant number, since it is smaller than the sum of its proper divisors (381292662).

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

291025482 is a wasteful number, since it uses less digits than its factorization.

291025482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259414.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 291025482 is about 17059.4689835294. The cubic root of 291025482 is about 662.6898808757.

The spelling of 291025482 in words is "two hundred ninety-one million, twenty-five thousand, four hundred eighty-two".