402140752734 has 16 divisors (see below), whose sum is σ = 919178863488. Its totient is φ = 114897357912.

The previous prime is 402140752723. The next prime is 402140752751. The reversal of 402140752734 is 437257041204.

It is a junction number, because it is equal to n+sod(n) for n = 402140752692 and 402140752701.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4787389872 + ... + 4787389955.

It is an arithmetic number, because the mean of its divisors is an integer number (57448678968).

Almost surely, 2^402140752734 is an apocalyptic number.

402140752734 is an abundant number, since it is smaller than the sum of its proper divisors (517038110754).

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

402140752734 is a wasteful number, since it uses less digits than its factorization.

402140752734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9574779839.

The product of its (nonzero) digits is 188160, while the sum is 39.

Adding to 402140752734 its reverse (437257041204), we get a palindrome (839397793938).

The spelling of 402140752734 in words is "four hundred two billion, one hundred forty million, seven hundred fifty-two thousand, seven hundred thirty-four".