451151232 has 96 divisors (see below), whose sum is σ = 1394080920. Its totient is φ = 128894976.

The previous prime is 451151221. The next prime is 451151243. The reversal of 451151232 is 232151154.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (451151221) and next prime (451151243).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6828 + ... + 30804.

Almost surely, 2^451151232 is an apocalyptic number.

451151232 is a gapful number since it is divisible by the number (42) 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 451151232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697040460).

451151232 is an abundant number, since it is smaller than the sum of its proper divisors (942929688).

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

451151232 is a wasteful number, since it uses less digits than its factorization.

451151232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24008 (or 23989 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 451151232 is about 21240.3209015307. The cubic root of 451151232 is about 766.9623573559.

The spelling of 451151232 in words is "four hundred fifty-one million, one hundred fifty-one thousand, two hundred thirty-two".