250497040 has 40 divisors (see below), whose sum is σ = 616668120. Its totient is φ = 94304256.

The previous prime is 250497029. The next prime is 250497061. The reversal of 250497040 is 40794052.

It can be written as a sum of positive squares in 4 ways, for example, as 62916624 + 187580416 = 7932^2 + 13696^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 250496993 and 250497011.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90735 + ... + 93454.

It is an arithmetic number, because the mean of its divisors is an integer number (15416703).

Almost surely, 2^250497040 is an apocalyptic number.

250497040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250497040 is an abundant number, since it is smaller than the sum of its proper divisors (366171080).

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

250497040 is a wasteful number, since it uses less digits than its factorization.

250497040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184219 (or 184213 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 250497040 is about 15827.0982811127. The cubic root of 250497040 is about 630.3777360144.

The spelling of 250497040 in words is "two hundred fifty million, four hundred ninety-seven thousand, forty".