36139800 has 192 divisors, whose sum is σ = 121420800. Its totient is φ = 8870400.

The previous prime is 36139759. The next prime is 36139811. The reversal of 36139800 is 893163.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 539367 + ... + 539433.

It is an arithmetic number, because the mean of its divisors is an integer number (632400).

Almost surely, 2^36139800 is an apocalyptic number.

36139800 is a gapful number since it is divisible by the number (30) 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 36139800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60710400).

36139800 is an abundant number, since it is smaller than the sum of its proper divisors (85281000).

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

36139800 is a wasteful number, since it uses less digits than its factorization.

36139800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 36139800 is about 6011.6387116992. The cubic root of 36139800 is about 330.6195889519.

The spelling of 36139800 in words is "thirty-six million, one hundred thirty-nine thousand, eight hundred".