140378540 has 48 divisors (see below), whose sum is σ = 305835264. Its totient is φ = 54067200.

The previous prime is 140378521. The next prime is 140378549. The reversal of 140378540 is 45873041.

It is a super-2 number, since 2×140378540² = 39412268985063200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140378497 and 140378506.

It is not an unprimeable number, because it can be changed into a prime (140378549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158900 + ... + 159780.

It is an arithmetic number, because the mean of its divisors is an integer number (6371568).

Almost surely, 2^140378540 is an apocalyptic number.

140378540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140378540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152917632).

140378540 is an abundant number, since it is smaller than the sum of its proper divisors (165456724).

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

140378540 is a wasteful number, since it uses less digits than its factorization.

140378540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 140378540 is about 11848.1450024888. The cubic root of 140378540 is about 519.7169810985.

The spelling of 140378540 in words is "one hundred forty million, three hundred seventy-eight thousand, five hundred forty".