249374042 has 4 divisors (see below), whose sum is σ = 374061066. Its totient is φ = 124687020.

The previous prime is 249374033. The next prime is 249374051. The reversal of 249374042 is 240473942.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (249374033) and next prime (249374051).

It can be written as a sum of positive squares in only one way, i.e., 237807241 + 11566801 = 15421^2 + 3401^2 .

It is a junction number, because it is equal to n+sod(n) for n = 249373993 and 249374011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62343509 + ... + 62343512.

Almost surely, 2^249374042 is an apocalyptic number.

249374042 is a deficient number, since it is larger than the sum of its proper divisors (124687024).

249374042 is a wasteful number, since it uses less digits than its factorization.

249374042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124687023.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 249374042 is about 15791.5813647652. The cubic root of 249374042 is about 629.4343137476.

The spelling of 249374042 in words is "two hundred forty-nine million, three hundred seventy-four thousand, forty-two".