3969290 has 32 divisors (see below), whose sum is σ = 8104320. Its totient is φ = 1387584.

The previous prime is 3969289. The next prime is 3969307. The reversal of 3969290 is 929693.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 1667 + ... + 3273.

It is an arithmetic number, because the mean of its divisors is an integer number (253260).

Almost surely, 2^3969290 is an apocalyptic number.

3969290 is an abundant number, since it is smaller than the sum of its proper divisors (4135030).

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

3969290 is a wasteful number, since it uses less digits than its factorization.

3969290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 3969290 is about 1992.3077071577. The cubic root of 3969290 is about 158.3328187118.

The spelling of 3969290 in words is "three million, nine hundred sixty-nine thousand, two hundred ninety".