451142634 has 16 divisors (see below), whose sum is σ = 955361088. Its totient is φ = 141534912.

The previous prime is 451142633. The next prime is 451142663. The reversal of 451142634 is 436241154.

It is not an unprimeable number, because it can be changed into a prime (451142633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211382 + ... + 2211585.

It is an arithmetic number, because the mean of its divisors is an integer number (59710068).

Almost surely, 2^451142634 is an apocalyptic number.

451142634 is an abundant number, since it is smaller than the sum of its proper divisors (504218454).

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

451142634 is a wasteful number, since it uses less digits than its factorization.

451142634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422989.

The product of its digits is 11520, while the sum is 30.

The square root of 451142634 is about 21240.1185024943. The cubic root of 451142634 is about 766.9574850915.

Adding to 451142634 its reverse (436241154), we get a palindrome (887383788).

The spelling of 451142634 in words is "four hundred fifty-one million, one hundred forty-two thousand, six hundred thirty-four".