36889640 has 32 divisors (see below), whose sum is σ = 87372000. Its totient is φ = 13978944.

The previous prime is 36889639. The next prime is 36889663. The reversal of 36889640 is 4698863.

It is a junction number, because it is equal to n+sod(n) for n = 36889591 and 36889600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23510 + ... + 25029.

It is an arithmetic number, because the mean of its divisors is an integer number (2730375).

Almost surely, 2^36889640 is an apocalyptic number.

It is an amenable number.

36889640 is an abundant number, since it is smaller than the sum of its proper divisors (50482360).

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

36889640 is a wasteful number, since it uses less digits than its factorization.

36889640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48569 (or 48565 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 36889640 is about 6073.6842196479. The cubic root of 36889640 is about 332.8905543229.

The spelling of 36889640 in words is "thirty-six million, eight hundred eighty-nine thousand, six hundred forty".