400560406 has 8 divisors (see below), whose sum is σ = 615495384. Its totient is φ = 195395280.

The previous prime is 400560401. The next prime is 400560439. The reversal of 400560406 is 604065004.

It is a happy number.

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 (400560401) 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, 2442360 + ... + 2442523.

It is an arithmetic number, because the mean of its divisors is an integer number (76936923).

Almost surely, 2^400560406 is an apocalyptic number.

400560406 is a deficient number, since it is larger than the sum of its proper divisors (214934978).

400560406 is a wasteful number, since it uses less digits than its factorization.

400560406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884926.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 400560406 is about 20014.0052463269. The cubic root of 400560406 is about 737.1502313862.

The spelling of 400560406 in words is "four hundred million, five hundred sixty thousand, four hundred six".