142406640044 has 12 divisors (see below), whose sum is σ = 255289952568. Its totient is φ = 69466653600.

The previous prime is 142406640001. The next prime is 142406640049. The reversal of 142406640044 is 440046604241.

It is a super-2 number, since 2×142406640044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142406639986 and 142406640013.

It is not an unprimeable number, because it can be changed into a prime (142406640049) 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, 434166422 + ... + 434166749.

It is an arithmetic number, because the mean of its divisors is an integer number (21274162714).

Almost surely, 2^142406640044 is an apocalyptic number.

It is an amenable number.

142406640044 is a deficient number, since it is larger than the sum of its proper divisors (112883312524).

142406640044 is a wasteful number, since it uses less digits than its factorization.

142406640044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868333216 (or 868333214 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 142406640044 in words is "one hundred forty-two billion, four hundred six million, six hundred forty thousand, forty-four".