140499830 has 8 divisors (see below), whose sum is σ = 252899712. Its totient is φ = 56199928.

The previous prime is 140499829. The next prime is 140499859. The reversal of 140499830 is 38994041.

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

It is a Curzon number.

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, 7024982 + ... + 7025001.

It is an arithmetic number, because the mean of its divisors is an integer number (31612464).

Almost surely, 2^140499830 is an apocalyptic number.

140499830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140499830 is a deficient number, since it is larger than the sum of its proper divisors (112399882).

140499830 is a wasteful number, since it uses less digits than its factorization.

140499830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14049990.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 140499830 is about 11853.2624201103. The cubic root of 140499830 is about 519.8666201303.

The spelling of 140499830 in words is "one hundred forty million, four hundred ninety-nine thousand, eight hundred thirty".