142100400440 has 64 divisors (see below), whose sum is σ = 333707895360. Its totient is φ = 54355671040.

The previous prime is 142100400427. The next prime is 142100400469. The reversal of 142100400440 is 44004001241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4326962 + ... + 4359678.

It is an arithmetic number, because the mean of its divisors is an integer number (5214185865).

Almost surely, 2^142100400440 is an apocalyptic number.

142100400440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142100400440 is an abundant number, since it is smaller than the sum of its proper divisors (191607494920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142100400440 is a wasteful number, since it uses less digits than its factorization.

142100400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37472 (or 37468 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 142100400440 its reverse (44004001241), we get a palindrome (186104401681).

The spelling of 142100400440 in words is "one hundred forty-two billion, one hundred million, four hundred thousand, four hundred forty".