3940650 has 120 divisors (see below), whose sum is σ = 12603360. Its totient is φ = 894240.

The previous prime is 3940637. The next prime is 3940663. The reversal of 3940650 is 560493.

It is a happy number.

3940650 is a `hidden beast` number, since 3 + 9 + 4 + 0 + 650 = 666.

It is an interprime number because it is at equal distance from previous prime (3940637) and next prime (3940663).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 28281 + ... + 28419.

It is an arithmetic number, because the mean of its divisors is an integer number (105028).

Almost surely, 2^3940650 is an apocalyptic number.

3940650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3940650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6301680).

3940650 is an abundant number, since it is smaller than the sum of its proper divisors (8662710).

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

3940650 is a wasteful number, since it uses less digits than its factorization.

3940650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 3940650 is about 1985.1070500101. The cubic root of 3940650 is about 157.9510877813.

The spelling of 3940650 in words is "three million, nine hundred forty thousand, six hundred fifty".