400120202 has 8 divisors (see below), whose sum is σ = 631768800. Its totient is φ = 189530604.

The previous prime is 400120169. The next prime is 400120207. The reversal of 400120202 is 202021004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (400120207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264702 + ... + 5264777.

It is an arithmetic number, because the mean of its divisors is an integer number (78971100).

Almost surely, 2^400120202 is an apocalyptic number.

400120202 is a deficient number, since it is larger than the sum of its proper divisors (231648598).

400120202 is a wasteful number, since it uses less digits than its factorization.

400120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10529500.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 400120202 is about 20003.0048242758. The cubic root of 400120202 is about 736.8800969955.

Adding to 400120202 its reverse (202021004), we get a palindrome (602141206).

The spelling of 400120202 in words is "four hundred million, one hundred twenty thousand, two hundred two".