400107107402 has 4 divisors (see below), whose sum is σ = 600160661106. Its totient is φ = 200053553700.

The previous prime is 400107107401. The next prime is 400107107429. The reversal of 400107107402 is 204701701004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 400080285361 + 26822041 = 632519^2 + 5179^2 .

It is not an unprimeable number, because it can be changed into a prime (400107107401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100026776849 + ... + 100026776852.

Almost surely, 2^400107107402 is an apocalyptic number.

400107107402 is a deficient number, since it is larger than the sum of its proper divisors (200053553704).

400107107402 is a wasteful number, since it uses less digits than its factorization.

400107107402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200053553703.

The product of its (nonzero) digits is 1568, while the sum is 26.

Adding to 400107107402 its reverse (204701701004), we get a palindrome (604808808406).

The spelling of 400107107402 in words is "four hundred billion, one hundred seven million, one hundred seven thousand, four hundred two".