407244457 has 4 divisors (see below), whose sum is σ = 407285460. Its totient is φ = 407203456.

The previous prime is 407244449. The next prime is 407244473. The reversal of 407244457 is 754442704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 118788201 + 288456256 = 10899^2 + 16984^2 .

It is a cyclic number.

It is not a de Polignac number, because 407244457 - 2³ = 407244449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (407254457) 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, 4833 + ... + 28945.

It is an arithmetic number, because the mean of its divisors is an integer number (101821365).

Almost surely, 2^407244457 is an apocalyptic number.

It is an amenable number.

407244457 is a deficient number, since it is larger than the sum of its proper divisors (41003).

407244457 is a wasteful number, since it uses less digits than its factorization.

407244457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41002.

The product of its (nonzero) digits is 125440, while the sum is 37.

The square root of 407244457 is about 20180.2987341615. The cubic root of 407244457 is about 741.2278477323.

The spelling of 407244457 in words is "four hundred seven million, two hundred forty-four thousand, four hundred fifty-seven".