40345361444 has 36 divisors (see below), whose sum is σ = 74649842064. Its totient is φ = 19076631408.

The previous prime is 40345361429. The next prime is 40345361447. The reversal of 40345361444 is 44416354304.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 40345361398 and 40345361407.

It is not an unprimeable number, because it can be changed into a prime (40345361447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788159 + ... + 837785.

It is an arithmetic number, because the mean of its divisors is an integer number (2073606724).

Almost surely, 2^40345361444 is an apocalyptic number.

It is an amenable number.

40345361444 is a deficient number, since it is larger than the sum of its proper divisors (34304480620).

40345361444 is a wasteful number, since it uses less digits than its factorization.

40345361444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50232 (or 50211 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

The spelling of 40345361444 in words is "forty billion, three hundred forty-five million, three hundred sixty-one thousand, four hundred forty-four".