245815490 has 32 divisors (see below), whose sum is σ = 468239616. Its totient is φ = 92720320.

The previous prime is 245815469. The next prime is 245815501. The reversal of 245815490 is 94518542.

245815490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8804 + ... + 23856.

It is an arithmetic number, because the mean of its divisors is an integer number (14632488).

Almost surely, 2^245815490 is an apocalyptic number.

245815490 is a deficient number, since it is larger than the sum of its proper divisors (222424126).

245815490 is a wasteful number, since it uses less digits than its factorization.

245815490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15154.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 245815490 is about 15678.5040740499. The cubic root of 245815490 is about 626.4259622697.

The spelling of 245815490 in words is "two hundred forty-five million, eight hundred fifteen thousand, four hundred ninety".