457279742 has 8 divisors (see below), whose sum is σ = 688864176. Its totient is φ = 227658352.

The previous prime is 457279703. The next prime is 457279747. The reversal of 457279742 is 247972754.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457279747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490178 + ... + 491109.

It is an arithmetic number, because the mean of its divisors is an integer number (86108022).

Almost surely, 2^457279742 is an apocalyptic number.

457279742 is a deficient number, since it is larger than the sum of its proper divisors (231584434).

457279742 is a wasteful number, since it uses less digits than its factorization.

457279742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981522.

The product of its digits is 987840, while the sum is 47.

The square root of 457279742 is about 21384.1002148793. The cubic root of 457279742 is about 770.4195958992.

The spelling of 457279742 in words is "four hundred fifty-seven million, two hundred seventy-nine thousand, seven hundred forty-two".