400040400010 has 32 divisors (see below), whose sum is σ = 753394815360. Its totient is φ = 152648557248.

The previous prime is 400040399981. The next prime is 400040400047. The reversal of 400040400010 is 10004040004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2245720 + ... + 2417299.

It is an arithmetic number, because the mean of its divisors is an integer number (23543587980).

Almost surely, 2^400040400010 is an apocalyptic number.

400040400010 is a deficient number, since it is larger than the sum of its proper divisors (353354415350).

400040400010 is a wasteful number, since it uses less digits than its factorization.

400040400010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663422.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 400040400010 its reverse (10004040004), we get a palindrome (410044440014).

The spelling of 400040400010 in words is "four hundred billion, forty million, four hundred thousand, ten".