140400013444 has 6 divisors (see below), whose sum is σ = 245700023534. Its totient is φ = 70200006720.

The previous prime is 140400013433. The next prime is 140400013469. The reversal of 140400013444 is 444310004041.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 92027289600 + 48372723844 = 303360^2 + 219938^2 .

It is a super-2 number, since 2×140400013444² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17550001677 + ... + 17550001684.

Almost surely, 2^140400013444 is an apocalyptic number.

It is an amenable number.

140400013444 is a deficient number, since it is larger than the sum of its proper divisors (105300010090).

140400013444 is a wasteful number, since it uses less digits than its factorization.

140400013444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35100003365 (or 35100003363 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 140400013444 its reverse (444310004041), we get a palindrome (584710017485).

The spelling of 140400013444 in words is "one hundred forty billion, four hundred million, thirteen thousand, four hundred forty-four".