140499840 has 192 divisors, whose sum is σ = 486062640. Its totient is φ = 34504704.

The previous prime is 140499829. The next prime is 140499859. The reversal of 140499840 is 48994041.

140499840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324264 + ... + 324696.

Almost surely, 2^140499840 is an apocalyptic number.

140499840 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 140499840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243031320).

140499840 is an abundant number, since it is smaller than the sum of its proper divisors (345562800).

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

140499840 is a wasteful number, since it uses less digits than its factorization.

140499840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 140499840 is about 11853.2628419351. The cubic root of 140499840 is about 519.8666324640.

The spelling of 140499840 in words is "one hundred forty million, four hundred ninety-nine thousand, eight hundred forty".