40634444420 has 48 divisors (see below), whose sum is σ = 85557040128. Its totient is φ = 16211045760.

The previous prime is 40634444393. The next prime is 40634444437. The reversal of 40634444420 is 2444443604.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15977669 + ... + 15980211.

It is an arithmetic number, because the mean of its divisors is an integer number (1782438336).

Almost surely, 2^40634444420 is an apocalyptic number.

It is an amenable number.

40634444420 is an abundant number, since it is smaller than the sum of its proper divisors (44922595708).

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

40634444420 is a wasteful number, since it uses less digits than its factorization.

40634444420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340 (or 4338 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

The spelling of 40634444420 in words is "forty billion, six hundred thirty-four million, four hundred forty-four thousand, four hundred twenty".