400107478 has 8 divisors (see below), whose sum is σ = 635464872. Its totient is φ = 188285856.

The previous prime is 400107473. The next prime is 400107509. The reversal of 400107478 is 874701004.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400107473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5883900 + ... + 5883967.

It is an arithmetic number, because the mean of its divisors is an integer number (79433109).

Almost surely, 2^400107478 is an apocalyptic number.

400107478 is a deficient number, since it is larger than the sum of its proper divisors (235357394).

400107478 is a wasteful number, since it uses less digits than its factorization.

400107478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11767886.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 400107478 is about 20002.6867695317. The cubic root of 400107478 is about 736.8722858746.

The spelling of 400107478 in words is "four hundred million, one hundred seven thousand, four hundred seventy-eight".