457981401 has 4 divisors (see below), whose sum is σ = 610641872. Its totient is φ = 305320932.

The previous prime is 457981361. The next prime is 457981409. The reversal of 457981401 is 104189754.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 457981401 - 2¹⁰ = 457980377 is a prime.

It is the 21401-st Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 457981401.

It is not an unprimeable number, because it can be changed into a prime (457981409) by changing a digit.

It is a nontrivial repunit in base 21400.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76330231 + ... + 76330236.

It is an arithmetic number, because the mean of its divisors is an integer number (152660468).

Almost surely, 2^457981401 is an apocalyptic number.

It is an amenable number.

457981401 is a deficient number, since it is larger than the sum of its proper divisors (152660471).

457981401 is a wasteful number, since it uses less digits than its factorization.

457981401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152660470.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 457981401 is about 21400.5000175230. The cubic root of 457981401 is about 770.8134435020.

The spelling of 457981401 in words is "four hundred fifty-seven million, nine hundred eighty-one thousand, four hundred one".