245491722 has 48 divisors (see below), whose sum is σ = 630407232. Its totient is φ = 70139520.

The previous prime is 245491703. The next prime is 245491733. The reversal of 245491722 is 227194542.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32679 + ... + 39482.

It is an arithmetic number, because the mean of its divisors is an integer number (13133484).

Almost surely, 2^245491722 is an apocalyptic number.

245491722 is an abundant number, since it is smaller than the sum of its proper divisors (384915510).

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

245491722 is an equidigital number, since it uses as much as digits as its factorization.

245491722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72185 (or 72173 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 245491722 is about 15668.1754521706. The cubic root of 245491722 is about 626.1508158029.

The spelling of 245491722 in words is "two hundred forty-five million, four hundred ninety-one thousand, seven hundred twenty-two".