400000240442 has 32 divisors (see below), whose sum is σ = 655800235200. Its totient is φ = 181470083200.

The previous prime is 400000240429. The next prime is 400000240459. The reversal of 400000240442 is 244042000004.

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, 56263184 + ... + 56270292.

It is an arithmetic number, because the mean of its divisors is an integer number (20493757350).

Almost surely, 2^400000240442 is an apocalyptic number.

400000240442 is a deficient number, since it is larger than the sum of its proper divisors (255799994758).

400000240442 is a wasteful number, since it uses less digits than its factorization.

400000240442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11662.

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 400000240442 its reverse (244042000004), we get a palindrome (644042240446).

The spelling of 400000240442 in words is "four hundred billion, two hundred forty thousand, four hundred forty-two".