139393800 has 576 divisors, whose sum is σ = 617460480. Its totient is φ = 27371520.

The previous prime is 139393799. The next prime is 139393811. The reversal of 139393800 is 8393931.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

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 143 ways as a sum of consecutive naturals, for example, 3767382 + ... + 3767418.

It is an arithmetic number, because the mean of its divisors is an integer number (1071980).

Almost surely, 2^139393800 is an apocalyptic number.

139393800 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 139393800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308730240).

139393800 is an abundant number, since it is smaller than the sum of its proper divisors (478066680).

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

139393800 is a wasteful number, since it uses less digits than its factorization.

139393800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 139393800 is about 11806.5151505429. The cubic root of 139393800 is about 518.4988758873.

The spelling of 139393800 in words is "one hundred thirty-nine million, three hundred ninety-three thousand, eight hundred".