400060646 has 8 divisors (see below), whose sum is σ = 600210000. Its totient is φ = 199990648.

The previous prime is 400060627. The next prime is 400060667. The reversal of 400060646 is 646060004.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5021 + ... + 28728.

It is an arithmetic number, because the mean of its divisors is an integer number (75026250).

Almost surely, 2^400060646 is an apocalyptic number.

400060646 is a deficient number, since it is larger than the sum of its proper divisors (200149354).

400060646 is a wasteful number, since it uses less digits than its factorization.

400060646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39678.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 400060646 is about 20001.5160925366. The cubic root of 400060646 is about 736.8435348087.

It can be divided in two parts, 4000 and 60646, that added together give a palindrome (64646).

The spelling of 400060646 in words is "four hundred million, sixty thousand, six hundred forty-six".