140402342040 has 64 divisors (see below), whose sum is σ = 423062645760. Its totient is φ = 37275680640.

The previous prime is 140402342023. The next prime is 140402342051. The reversal of 140402342040 is 40243204041.

It is a happy number.

It is a super-3 number, since 3×140402342040³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 140402342040.

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, 2549896 + ... + 2604375.

It is an arithmetic number, because the mean of its divisors is an integer number (6610353840).

Almost surely, 2^140402342040 is an apocalyptic number.

140402342040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140402342040 is an abundant number, since it is smaller than the sum of its proper divisors (282660303720).

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

140402342040 is a wasteful number, since it uses less digits than its factorization.

140402342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154512 (or 5154508 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 140402342040 its reverse (40243204041), we get a palindrome (180645546081).

The spelling of 140402342040 in words is "one hundred forty billion, four hundred two million, three hundred forty-two thousand, forty".