249070040 has 32 divisors (see below), whose sum is σ = 565965360. Its totient is φ = 98640000.

The previous prime is 249069991. The next prime is 249070099. The reversal of 249070040 is 40070942.

It is a junction number, because it is equal to n+sod(n) for n = 249069991 and 249070009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26786 + ... + 34865.

Almost surely, 2^249070040 is an apocalyptic number.

249070040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249070040 is an abundant number, since it is smaller than the sum of its proper divisors (316895320).

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

249070040 is a wasteful number, since it uses less digits than its factorization.

249070040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61763 (or 61759 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 249070040 is about 15781.9529843426. The cubic root of 249070040 is about 629.1784369439.

The spelling of 249070040 in words is "two hundred forty-nine million, seventy thousand, forty".