36289640 has 64 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 13989888.

The previous prime is 36289619. The next prime is 36289651. The reversal of 36289640 is 4698263.

It is a junction number, because it is equal to n+sod(n) for n = 36289594 and 36289603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182261 + ... + 182459.

It is an arithmetic number, because the mean of its divisors is an integer number (1323000).

Almost surely, 2^36289640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36289640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42336000).

36289640 is an abundant number, since it is smaller than the sum of its proper divisors (48382360).

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

36289640 is a wasteful number, since it uses less digits than its factorization.

36289640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 36289640 is about 6024.0883127657. The cubic root of 36289640 is about 331.0758885638.

The spelling of 36289640 in words is "thirty-six million, two hundred eighty-nine thousand, six hundred forty".