451939696 has 80 divisors (see below), whose sum is σ = 1042058304. Its totient is φ = 187748352.

The previous prime is 451939693. The next prime is 451939699. The reversal of 451939696 is 696939154.

It is an interprime number because it is at equal distance from previous prime (451939693) and next prime (451939699).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451939693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78550 + ... + 84106.

Almost surely, 2^451939696 is an apocalyptic number.

451939696 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451939696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521029152).

451939696 is an abundant number, since it is smaller than the sum of its proper divisors (590118608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451939696 is a wasteful number, since it uses less digits than its factorization.

451939696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618 (or 5612 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 52.

The square root of 451939696 is about 21258.8733473813. The cubic root of 451939696 is about 767.4088966548.

The spelling of 451939696 in words is "four hundred fifty-one million, nine hundred thirty-nine thousand, six hundred ninety-six".