40000670408 has 8 divisors (see below), whose sum is σ = 75001257030. Its totient is φ = 20000335200.

The previous prime is 40000670383. The next prime is 40000670419. The reversal of 40000670408 is 80407600004.

It can be written as a sum of positive squares in only one way, i.e., 29064112324 + 10936558084 = 170482^2 + 104578^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500041893 + ... + 2500041908.

Almost surely, 2^40000670408 is an apocalyptic number.

It is an amenable number.

40000670408 is a deficient number, since it is larger than the sum of its proper divisors (35000586622).

40000670408 is a wasteful number, since it uses less digits than its factorization.

40000670408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5000083807 (or 5000083803 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The spelling of 40000670408 in words is "forty billion, six hundred seventy thousand, four hundred eight".