40451634 has 24 divisors (see below), whose sum is σ = 88757760. Its totient is φ = 13312728.

The previous prime is 40451633. The next prime is 40451647. The reversal of 40451634 is 43615404.

40451634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40451598 and 40451607.

It is not an unprimeable number, because it can be changed into a prime (40451633) 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 11 ways as a sum of consecutive naturals, for example, 12802 + ... + 15645.

It is an arithmetic number, because the mean of its divisors is an integer number (3698240).

Almost surely, 2^40451634 is an apocalyptic number.

40451634 is an abundant number, since it is smaller than the sum of its proper divisors (48306126).

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

40451634 is a wasteful number, since it uses less digits than its factorization.

40451634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28534 (or 28531 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 40451634 is about 6360.1599036502. The cubic root of 40451634 is about 343.2775139928.

It can be divided in two parts, 404516 and 34, that added together give a triangular number (404550 = T₈₉₉).

The spelling of 40451634 in words is "forty million, four hundred fifty-one thousand, six hundred thirty-four".