249742452 has 96 divisors (see below), whose sum is σ = 623214592. Its totient is φ = 77728896.

The previous prime is 249742447. The next prime is 249742469. The reversal of 249742452 is 254247942.

249742452 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

Its product of digits (161280) is a multiple of the sum of its prime divisors (315).

It is a self number, because there is not a number n which added to its sum of digits gives 249742452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1966413 + ... + 1966539.

Almost surely, 2^249742452 is an apocalyptic number.

It is an amenable number.

249742452 is an abundant number, since it is smaller than the sum of its proper divisors (373472140).

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

249742452 is a wasteful number, since it uses less digits than its factorization.

249742452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 315 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 249742452 is about 15803.2418193230. The cubic root of 249742452 is about 629.7441238545.

The spelling of 249742452 in words is "two hundred forty-nine million, seven hundred forty-two thousand, four hundred fifty-two".