400103042 has 16 divisors (see below), whose sum is σ = 612696312. Its totient is φ = 195886080.

The previous prime is 400102993. The next prime is 400103047. The reversal of 400103042 is 240301004.

It can be written as a sum of positive squares in 4 ways, for example, as 310781641 + 89321401 = 17629^2 + 9451^2 .

It is not an unprimeable number, because it can be changed into a prime (400103047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53858 + ... + 60834.

Almost surely, 2^400103042 is an apocalyptic number.

400103042 is a deficient number, since it is larger than the sum of its proper divisors (212593270).

400103042 is a wasteful number, since it uses less digits than its factorization.

400103042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 400103042 is about 20002.5758841205. The cubic root of 400103042 is about 736.8695626251.

Adding to 400103042 its reverse (240301004), we get a palindrome (640404046).

The spelling of 400103042 in words is "four hundred million, one hundred three thousand, forty-two".