400422040402 has 16 divisors (see below), whose sum is σ = 601000045632. Its totient is φ = 200088733680.

The previous prime is 400422040397. The next prime is 400422040411. The reversal of 400422040402 is 204040224004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32609488 + ... + 32621764.

It is an arithmetic number, because the mean of its divisors is an integer number (37562502852).

Almost surely, 2^400422040402 is an apocalyptic number.

400422040402 is a deficient number, since it is larger than the sum of its proper divisors (200578005230).

400422040402 is a wasteful number, since it uses less digits than its factorization.

400422040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20913.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 400422040402 its reverse (204040224004), we get a palindrome (604462264406).

The spelling of 400422040402 in words is "four hundred billion, four hundred twenty-two million, forty thousand, four hundred two".