451112340 has 384 divisors, whose sum is σ = 1658216448. Its totient is φ = 89210880.

The previous prime is 451112329. The next prime is 451112351. The reversal of 451112340 is 43211154.

It is an interprime number because it is at equal distance from previous prime (451112329) and next prime (451112351).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6732987 + ... + 6733053.

It is an arithmetic number, because the mean of its divisors is an integer number (4318272).

Almost surely, 2^451112340 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 451112340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829108224).

451112340 is an abundant number, since it is smaller than the sum of its proper divisors (1207104108).

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

451112340 is a wasteful number, since it uses less digits than its factorization.

451112340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 451112340 is about 21239.4053589078. The cubic root of 451112340 is about 766.9403177713.

Adding to 451112340 its reverse (43211154), we get a palindrome (494323494).

The spelling of 451112340 in words is "four hundred fifty-one million, one hundred twelve thousand, three hundred forty".