456749491 has 8 divisors (see below), whose sum is σ = 498451968. Its totient is φ = 415077000.

The previous prime is 456749477. The next prime is 456749521. The reversal of 456749491 is 194947654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 456749491 - 2⁵ = 456749459 is a prime.

It is a super-3 number, since 3×456749491³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456749401) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34726 + ... + 46036.

It is an arithmetic number, because the mean of its divisors is an integer number (62306496).

Almost surely, 2^456749491 is an apocalyptic number.

456749491 is a deficient number, since it is larger than the sum of its proper divisors (41702477).

456749491 is a wasteful number, since it uses less digits than its factorization.

456749491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14993.

The product of its digits is 1088640, while the sum is 49.

The square root of 456749491 is about 21371.6983648937. The cubic root of 456749491 is about 770.1216938149.

It can be divided in two parts, 456 and 749491, that added together give a palindrome (749947).

The spelling of 456749491 in words is "four hundred fifty-six million, seven hundred forty-nine thousand, four hundred ninety-one".