757249942 has 4 divisors (see below), whose sum is σ = 1135874916. Its totient is φ = 378624970.

The previous prime is 757249939. The next prime is 757249949. The reversal of 757249942 is 249942757.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249942757 = 47 ⋅5317931.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (757249949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189312484 + ... + 189312487.

It is an arithmetic number, because the mean of its divisors is an integer number (283968729).

Almost surely, 2^757249942 is an apocalyptic number.

757249942 is a deficient number, since it is larger than the sum of its proper divisors (378624974).

757249942 is a wasteful number, since it uses less digits than its factorization.

757249942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378624973.

The product of its digits is 1270080, while the sum is 49.

The square root of 757249942 is about 27518.1747577851. The cubic root of 757249942 is about 911.4784733352.

The spelling of 757249942 in words is "seven hundred fifty-seven million, two hundred forty-nine thousand, nine hundred forty-two".