40400670407 has 8 divisors (see below), whose sum is σ = 41495359776. Its totient is φ = 39306127392.

The previous prime is 40400670397. The next prime is 40400670419. The reversal of 40400670407 is 70407600404.

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

It is a cyclic number.

It is not a de Polignac number, because 40400670407 - 2³² = 36105703111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400670467) 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, 747293 + ... + 799529.

It is an arithmetic number, because the mean of its divisors is an integer number (5186919972).

Almost surely, 2^40400670407 is an apocalyptic number.

40400670407 is a deficient number, since it is larger than the sum of its proper divisors (1094689369).

40400670407 is a wasteful number, since it uses less digits than its factorization.

40400670407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73177.

The product of its (nonzero) digits is 18816, while the sum is 32.

The spelling of 40400670407 in words is "forty billion, four hundred million, six hundred seventy thousand, four hundred seven".