249474002890 has 16 divisors (see below), whose sum is σ = 513203663232. Its totient is φ = 85533943824.

The previous prime is 249474002879. The next prime is 249474002893. The reversal of 249474002890 is 98200474942.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (249474002893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1781957094 + ... + 1781957233.

It is an arithmetic number, because the mean of its divisors is an integer number (32075228952).

Almost surely, 2^249474002890 is an apocalyptic number.

249474002890 is an abundant number, since it is smaller than the sum of its proper divisors (263729660342).

249474002890 is a wasteful number, since it uses less digits than its factorization.

249474002890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563914341.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 249474002890 in words is "two hundred forty-nine billion, four hundred seventy-four million, two thousand, eight hundred ninety".