40019713 has 8 divisors (see below), whose sum is σ = 41203008. Its totient is φ = 38847984.

The previous prime is 40019699. The next prime is 40019743. The reversal of 40019713 is 31791004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40019713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40019743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4395 + ... + 9967.

It is an arithmetic number, because the mean of its divisors is an integer number (5150376).

Almost surely, 2^40019713 is an apocalyptic number.

40019713 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

40019713 is a deficient number, since it is larger than the sum of its proper divisors (1183295).

40019713 is a wasteful number, since it uses less digits than its factorization.

40019713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5783.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 40019713 is about 6326.1135778612. The cubic root of 40019713 is about 342.0513613684.

The spelling of 40019713 in words is "forty million, nineteen thousand, seven hundred thirteen".