140739456 has 192 divisors, whose sum is σ = 444422160. Its totient is φ = 39198720.

The previous prime is 140739451. The next prime is 140739497. The reversal of 140739456 is 654937041.

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 not an unprimeable number, because it can be changed into a prime (140739451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603916 + ... + 604148.

Almost surely, 2^140739456 is an apocalyptic number.

140739456 is a gapful number since it is divisible by the number (16) 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 140739456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222211080).

140739456 is an abundant number, since it is smaller than the sum of its proper divisors (303682704).

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

140739456 is a wasteful number, since it uses less digits than its factorization.

140739456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 140739456 is about 11863.3661327635. The cubic root of 140739456 is about 520.1620008071.

The spelling of 140739456 in words is "one hundred forty million, seven hundred thirty-nine thousand, four hundred fifty-six".