139710340 has 96 divisors (see below), whose sum is σ = 368250624. Its totient is φ = 43253760.

The previous prime is 139710317. The next prime is 139710353. The reversal of 139710340 is 43017931.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 139710299 and 139710308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 395604 + ... + 395956.

It is an arithmetic number, because the mean of its divisors is an integer number (3835944).

Almost surely, 2^139710340 is an apocalyptic number.

139710340 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 139710340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184125312).

139710340 is an abundant number, since it is smaller than the sum of its proper divisors (228540284).

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

139710340 is a wasteful number, since it uses less digits than its factorization.

139710340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 139710340 is about 11819.9128592389. The cubic root of 139710340 is about 518.8910539151.

The spelling of 139710340 in words is "one hundred thirty-nine million, seven hundred ten thousand, three hundred forty".