451032491 has 32 divisors (see below), whose sum is σ = 598969728. Its totient is φ = 329472000.

The previous prime is 451032487. The next prime is 451032503. The reversal of 451032491 is 194230154.

It is not a de Polignac number, because 451032491 - 2² = 451032487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451032391) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79241 + ... + 84741.

It is an arithmetic number, because the mean of its divisors is an integer number (18717804).

Almost surely, 2^451032491 is an apocalyptic number.

451032491 is a deficient number, since it is larger than the sum of its proper divisors (147937237).

451032491 is a wasteful number, since it uses less digits than its factorization.

451032491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 451032491 is about 21237.5255385367. The cubic root of 451032491 is about 766.8950644234.

The spelling of 451032491 in words is "four hundred fifty-one million, thirty-two thousand, four hundred ninety-one".