139358340 has 192 divisors, whose sum is σ = 489888000. Its totient is φ = 32578560.

The previous prime is 139358321. The next prime is 139358347. The reversal of 139358340 is 43853931.

139358340 is a `hidden beast` number, since 1 + 39 + 3 + 583 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 139358295 and 139358304.

It is not an unprimeable number, because it can be changed into a prime (139358347) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 171856 + ... + 172664.

It is an arithmetic number, because the mean of its divisors is an integer number (2551500).

Almost surely, 2^139358340 is an apocalyptic number.

139358340 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 139358340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244944000).

139358340 is an abundant number, since it is smaller than the sum of its proper divisors (350529660).

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

139358340 is a wasteful number, since it uses less digits than its factorization.

139358340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 139358340 is about 11805.0133417968. The cubic root of 139358340 is about 518.4549056643.

The spelling of 139358340 in words is "one hundred thirty-nine million, three hundred fifty-eight thousand, three hundred forty".