451480639 has 8 divisors (see below), whose sum is σ = 478143360. Its totient is φ = 425404056.

The previous prime is 451480619. The next prime is 451480657. The reversal of 451480639 is 936084154.

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 451480639 - 2¹¹ = 451478591 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 (451480609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144949 + ... + 148030.

It is an arithmetic number, because the mean of its divisors is an integer number (59767920).

Almost surely, 2^451480639 is an apocalyptic number.

451480639 is a deficient number, since it is larger than the sum of its proper divisors (26662721).

451480639 is a wasteful number, since it uses less digits than its factorization.

451480639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293069.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 451480639 is about 21248.0737715210. The cubic root of 451480639 is about 767.1489771908.

The spelling of 451480639 in words is "four hundred fifty-one million, four hundred eighty thousand, six hundred thirty-nine".