457478407 has 4 divisors (see below), whose sum is σ = 457597696. Its totient is φ = 457359120.

The previous prime is 457478383. The next prime is 457478431. The reversal of 457478407 is 704874754.

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 (457478383) and next prime (457478431).

It is a cyclic number.

It is not a de Polignac number, because 457478407 - 2¹⁹ = 456954119 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 (457478477) 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, 53694 + ... + 61627.

It is an arithmetic number, because the mean of its divisors is an integer number (114399424).

Almost surely, 2^457478407 is an apocalyptic number.

457478407 is a deficient number, since it is larger than the sum of its proper divisors (119289).

457478407 is a wasteful number, since it uses less digits than its factorization.

457478407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119288.

The product of its (nonzero) digits is 878080, while the sum is 46.

The square root of 457478407 is about 21388.7448673362. The cubic root of 457478407 is about 770.5311492405.

It can be divided in two parts, 457 and 478407, that added together give a square (478864 = 692²).

The spelling of 457478407 in words is "four hundred fifty-seven million, four hundred seventy-eight thousand, four hundred seven".