400500670387 has 8 divisors (see below), whose sum is σ = 402116408480. Its totient is φ = 398888038080.

The previous prime is 400500670277. The next prime is 400500670403. The reversal of 400500670387 is 783076005004.

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-400500670387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400500610387) 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, 517848 + ... + 1034005.

It is an arithmetic number, because the mean of its divisors is an integer number (50264551060).

Almost surely, 2^400500670387 is an apocalyptic number.

400500670387 is a deficient number, since it is larger than the sum of its proper divisors (1615738093).

400500670387 is a wasteful number, since it uses less digits than its factorization.

400500670387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552893.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 400500670387 in words is "four hundred billion, five hundred million, six hundred seventy thousand, three hundred eighty-seven".