451195140 has 96 divisors (see below), whose sum is σ = 1438166016. Its totient is φ = 104621440.

The previous prime is 451195133. The next prime is 451195141. The reversal of 451195140 is 41591154.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 451195098 and 451195107.

It is not an unprimeable number, because it can be changed into a prime (451195141) 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, 319 + ... + 30041.

It is an arithmetic number, because the mean of its divisors is an integer number (14980896).

Almost surely, 2^451195140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451195140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719083008).

451195140 is an abundant number, since it is smaller than the sum of its proper divisors (986970876).

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

451195140 is a wasteful number, since it uses less digits than its factorization.

451195140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29769 (or 29767 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 451195140 is about 21241.3544765865. The cubic root of 451195140 is about 766.9872379195.

It can be divided in two parts, 451 and 195140, that added together give a palindrome (195591).

The spelling of 451195140 in words is "four hundred fifty-one million, one hundred ninety-five thousand, one hundred forty".