140457742 has 8 divisors (see below), whose sum is σ = 210890232. Its totient is φ = 70161000.

The previous prime is 140457739. The next prime is 140457781. The reversal of 140457742 is 247754041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140457698 and 140457707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31309 + ... + 35512.

It is an arithmetic number, because the mean of its divisors is an integer number (26361279).

Almost surely, 2^140457742 is an apocalyptic number.

140457742 is a deficient number, since it is larger than the sum of its proper divisors (70432490).

140457742 is a wasteful number, since it uses less digits than its factorization.

140457742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67874.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 140457742 is about 11851.4869109323. The cubic root of 140457742 is about 519.8147046903.

The spelling of 140457742 in words is "one hundred forty million, four hundred fifty-seven thousand, seven hundred forty-two".