40679745 has 16 divisors (see below), whose sum is σ = 65401152. Its totient is φ = 21591360.

The previous prime is 40679713. The next prime is 40679773. The reversal of 40679745 is 54797604.

It is not a de Polignac number, because 40679745 - 2⁵ = 40679713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40679697 and 40679706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3262 + ... + 9591.

It is an arithmetic number, because the mean of its divisors is an integer number (4087572).

Almost surely, 2^40679745 is an apocalyptic number.

It is an amenable number.

40679745 is a deficient number, since it is larger than the sum of its proper divisors (24721407).

40679745 is a wasteful number, since it uses less digits than its factorization.

40679745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13072.

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 40679745 is about 6378.0674972910. The cubic root of 40679745 is about 343.9215641660.

The spelling of 40679745 in words is "forty million, six hundred seventy-nine thousand, seven hundred forty-five".