3970290 has 32 divisors (see below), whose sum is σ = 9642240. Its totient is φ = 1046144.

The previous prime is 3970289. The next prime is 3970313. The reversal of 3970290 is 920793.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1927 + ... + 3413.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

Almost surely, 2^3970290 is an apocalyptic number.

3970290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3970290 is an abundant number, since it is smaller than the sum of its proper divisors (5671950).

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

3970290 is a wasteful number, since it uses less digits than its factorization.

3970290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 3970290 is about 1992.5586566021. The cubic root of 3970290 is about 158.3461140806.

The spelling of 3970290 in words is "three million, nine hundred seventy thousand, two hundred ninety".