457240349 has 4 divisors (see below), whose sum is σ = 459561564. Its totient is φ = 454919136.

The previous prime is 457240331. The next prime is 457240367. The reversal of 457240349 is 943042754.

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 (457240331) and next prime (457240367).

It can be written as a sum of positive squares in 2 ways, for example, as 302412100 + 154828249 = 17390^2 + 12443^2 .

It is a cyclic number.

It is not a de Polignac number, because 457240349 - 2¹⁶ = 457174813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457240309) 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, 1160312 + ... + 1160705.

It is an arithmetic number, because the mean of its divisors is an integer number (114890391).

Almost surely, 2^457240349 is an apocalyptic number.

It is an amenable number.

457240349 is a deficient number, since it is larger than the sum of its proper divisors (2321215).

457240349 is a wasteful number, since it uses less digits than its factorization.

457240349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321214.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 457240349 is about 21383.1791134995. The cubic root of 457240349 is about 770.3974723077.

The spelling of 457240349 in words is "four hundred fifty-seven million, two hundred forty thousand, three hundred forty-nine".