3900036 has 48 divisors (see below), whose sum is σ = 10765440. Its totient is φ = 1075200.

The previous prime is 3899989. The next prime is 3900067. The reversal of 3900036 is 6300093.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 3899985 and 3900021.

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, 1636 + ... + 3236.

It is an arithmetic number, because the mean of its divisors is an integer number (224280).

Almost surely, 2^3900036 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 3900036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5382720).

3900036 is an abundant number, since it is smaller than the sum of its proper divisors (6865404).

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

3900036 is a wasteful number, since it uses less digits than its factorization.

3900036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 3900036 is about 1974.8508804464. The cubic root of 3900036 is about 157.4065759881.

The spelling of 3900036 in words is "three million, nine hundred thousand, thirty-six".