457742002 has 4 divisors (see below), whose sum is σ = 686613006. Its totient is φ = 228871000.

The previous prime is 457741969. The next prime is 457742011. The reversal of 457742002 is 200247754.

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

It can be written as a sum of positive squares in only one way, i.e., 456206881 + 1535121 = 21359^2 + 1239^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114435499 + ... + 114435502.

Almost surely, 2^457742002 is an apocalyptic number.

457742002 is a deficient number, since it is larger than the sum of its proper divisors (228871004).

457742002 is a wasteful number, since it uses less digits than its factorization.

457742002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228871003.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 457742002 is about 21394.9059824997. The cubic root of 457742002 is about 770.6791118969.

Adding to 457742002 its reverse (200247754), we get a palindrome (657989756).

The spelling of 457742002 in words is "four hundred fifty-seven million, seven hundred forty-two thousand, two".