249430080 has 56 divisors (see below), whose sum is σ = 791943552. Its totient is φ = 66514432.

The previous prime is 249430039. The next prime is 249430087. The reversal of 249430080 is 80034942.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (249430087) 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, 128952 + ... + 130871.

Almost surely, 2^249430080 is an apocalyptic number.

249430080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

249430080 is an abundant number, since it is smaller than the sum of its proper divisors (542513472).

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

249430080 is a wasteful number, since it uses less digits than its factorization.

249430080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259843 (or 259833 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 249430080 is about 15793.3555649203. The cubic root of 249430080 is about 629.4814579198.

The spelling of 249430080 in words is "two hundred forty-nine million, four hundred thirty thousand, eighty".