400122104 has 8 divisors (see below), whose sum is σ = 750228960. Its totient is φ = 200061048.

The previous prime is 400122103. The next prime is 400122127. The reversal of 400122104 is 401221004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400122103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25007624 + ... + 25007639.

It is an arithmetic number, because the mean of its divisors is an integer number (93778620).

Almost surely, 2^400122104 is an apocalyptic number.

It is an amenable number.

400122104 is a deficient number, since it is larger than the sum of its proper divisors (350106856).

400122104 is a wasteful number, since it uses less digits than its factorization.

400122104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50015269 (or 50015265 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 400122104 is about 20003.0523670764. The cubic root of 400122104 is about 736.8812645977.

Adding to 400122104 its reverse (401221004), we get a palindrome (801343108).

The spelling of 400122104 in words is "four hundred million, one hundred twenty-two thousand, one hundred four".