457021652 has 12 divisors (see below), whose sum is σ = 801270036. Its totient is φ = 228087360.

The previous prime is 457021639. The next prime is 457021657. The reversal of 457021652 is 256120754.

It can be written as a sum of positive squares in 2 ways, for example, as 300120976 + 156900676 = 17324^2 + 12526^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457021657) 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, 103433 + ... + 107760.

It is an arithmetic number, because the mean of its divisors is an integer number (66772503).

Almost surely, 2^457021652 is an apocalyptic number.

It is an amenable number.

457021652 is a deficient number, since it is larger than the sum of its proper divisors (344248384).

457021652 is a wasteful number, since it uses less digits than its factorization.

457021652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211738 (or 211736 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 457021652 is about 21378.0647393537. The cubic root of 457021652 is about 770.2746262776.

The spelling of 457021652 in words is "four hundred fifty-seven million, twenty-one thousand, six hundred fifty-two".