36398039040 has 864 divisors, whose sum is σ = 150616882080. Its totient is φ = 8304721920.

The previous prime is 36398039033. The next prime is 36398039071. The reversal of 36398039040 is 4093089363.

36398039040 is a `hidden beast` number, since 3 + 639 + 8 + 0 + 3 + 9 + 0 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (864).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 2141061112 + ... + 2141061128.

It is an arithmetic number, because the mean of its divisors is an integer number (174325095).

Almost surely, 2^36398039040 is an apocalyptic number.

36398039040 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 36398039040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75308441040).

36398039040 is an abundant number, since it is smaller than the sum of its proper divisors (114218843040).

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

36398039040 is an equidigital number, since it uses as much as digits as its factorization.

36398039040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 36398039040 in words is "thirty-six billion, three hundred ninety-eight million, thirty-nine thousand, forty".