140028157434 has 32 divisors (see below), whose sum is σ = 318799286784. Its totient is φ = 40587871280.

The previous prime is 140028157417. The next prime is 140028157439. The reversal of 140028157434 is 434751820041.

It is a super-2 number, since 2×140028157434² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140028157392 and 140028157401.

It is not an unprimeable number, because it can be changed into a prime (140028157439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46121064 + ... + 46124099.

It is an arithmetic number, because the mean of its divisors is an integer number (9962477712).

Almost surely, 2^140028157434 is an apocalyptic number.

140028157434 is an abundant number, since it is smaller than the sum of its proper divisors (178771129350).

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

140028157434 is a wasteful number, since it uses less digits than its factorization.

140028157434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92245202.

The product of its (nonzero) digits is 107520, while the sum is 39.

Adding to 140028157434 its reverse (434751820041), we get a palindrome (574779977475).

The spelling of 140028157434 in words is "one hundred forty billion, twenty-eight million, one hundred fifty-seven thousand, four hundred thirty-four".