245490988 has 12 divisors (see below), whose sum is σ = 429831360. Its totient is φ = 122682032.

The previous prime is 245490943. The next prime is 245490989. The reversal of 245490988 is 889094542.

245490988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×245490988² = 120531650378432288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245490989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6556 + ... + 23107.

It is an arithmetic number, because the mean of its divisors is an integer number (35819280).

Almost surely, 2^245490988 is an apocalyptic number.

It is an amenable number.

245490988 is a deficient number, since it is larger than the sum of its proper divisors (184340372).

245490988 is a wasteful number, since it uses less digits than its factorization.

245490988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31736 (or 31734 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 245490988 is about 15668.1520288769. The cubic root of 245490988 is about 626.1501917558.

The spelling of 245490988 in words is "two hundred forty-five million, four hundred ninety thousand, nine hundred eighty-eight".