20142400036 has 18 divisors (see below), whose sum is σ = 38744989430. Its totient is φ = 9155636160.

The previous prime is 20142400027. The next prime is 20142400039. The reversal of 20142400036 is 63000424102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11408376100 + 8734023936 = 106810^2 + 93456^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20142400039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20807781 + ... + 20808748.

Almost surely, 2^20142400036 is an apocalyptic number.

It is an amenable number.

20142400036 is a deficient number, since it is larger than the sum of its proper divisors (18602589394).

20142400036 is a wasteful number, since it uses less digits than its factorization.

20142400036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41616555 (or 41616542 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20142400036 its reverse (63000424102), we get a palindrome (83142824138).

The spelling of 20142400036 in words is "twenty billion, one hundred forty-two million, four hundred thousand, thirty-six".