40445793 has 12 divisors (see below), whose sum is σ = 60306688. Its totient is φ = 26093880.

The previous prime is 40445791. The next prime is 40445809. The reversal of 40445793 is 39754404.

40445793 is a `hidden beast` number, since 40 + 44 + 579 + 3 = 666.

It is not a de Polignac number, because 40445793 - 2¹ = 40445791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40445791) 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, 72205 + ... + 72762.

Almost surely, 2^40445793 is an apocalyptic number.

It is an amenable number.

40445793 is a deficient number, since it is larger than the sum of its proper divisors (19860895).

40445793 is a wasteful number, since it uses less digits than its factorization.

40445793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145004 (or 145001 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 40445793 is about 6359.7007005047. The cubic root of 40445793 is about 343.2609907173.

It can be divided in two parts, 404457 and 93, that added together give a triangular number (404550 = T₈₉₉).

The spelling of 40445793 in words is "forty million, four hundred forty-five thousand, seven hundred ninety-three".