40019007 has 8 divisors (see below), whose sum is σ = 60981376. Its totient is φ = 22867992.

The previous prime is 40018991. The next prime is 40019017. The reversal of 40019007 is 70091004.

40019007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40019007 - 2⁴ = 40018991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1905667 = 40019007 / (4 + 0 + 0 + 1 + 9 + 0 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40019017) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 952813 + ... + 952854.

It is an arithmetic number, because the mean of its divisors is an integer number (7622672).

Almost surely, 2^40019007 is an apocalyptic number.

40019007 is a deficient number, since it is larger than the sum of its proper divisors (20962369).

40019007 is a wasteful number, since it uses less digits than its factorization.

40019007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905677.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 40019007 is about 6326.0577771626. The cubic root of 40019007 is about 342.0493499457.

The spelling of 40019007 in words is "forty million, nineteen thousand, seven".