140857744 has 20 divisors (see below), whose sum is σ = 273576240. Its totient is φ = 70257440.

The previous prime is 140857709. The next prime is 140857747. The reversal of 140857744 is 447758041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 140857697 and 140857706.

It is not an unprimeable number, because it can be changed into a prime (140857747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3802 + ... + 17209.

It is an arithmetic number, because the mean of its divisors is an integer number (13678812).

Almost surely, 2^140857744 is an apocalyptic number.

It is an amenable number.

140857744 is a deficient number, since it is larger than the sum of its proper divisors (132718496).

140857744 is a wasteful number, since it uses less digits than its factorization.

140857744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21438 (or 21432 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 140857744 is about 11868.3505172370. The cubic root of 140857744 is about 520.3076877255.

The spelling of 140857744 in words is "one hundred forty million, eight hundred fifty-seven thousand, seven hundred forty-four".