457217402 has 8 divisors (see below), whose sum is σ = 686734356. Its totient is φ = 228305952.

The previous prime is 457217359. The next prime is 457217479. The reversal of 457217402 is 204712754.

It can be written as a sum of positive squares in 2 ways, for example, as 455779801 + 1437601 = 21349^2 + 1199^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149483 + ... + 152510.

Almost surely, 2^457217402 is an apocalyptic number.

457217402 is a deficient number, since it is larger than the sum of its proper divisors (229516954).

457217402 is a wasteful number, since it uses less digits than its factorization.

457217402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302752.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 457217402 is about 21382.6425401539. The cubic root of 457217402 is about 770.3845844056.

The spelling of 457217402 in words is "four hundred fifty-seven million, two hundred seventeen thousand, four hundred two".