3951340 has 12 divisors (see below), whose sum is σ = 8297856. Its totient is φ = 1580528.

The previous prime is 3951323. The next prime is 3951347. The reversal of 3951340 is 431593.

It is a super-2 number, since 2×3951340² = 31226175591200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3951347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98764 + ... + 98803.

It is an arithmetic number, because the mean of its divisors is an integer number (691488).

Almost surely, 2^3951340 is an apocalyptic number.

It is an amenable number.

3951340 is an abundant number, since it is smaller than the sum of its proper divisors (4346516).

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

3951340 is a wasteful number, since it uses less digits than its factorization.

3951340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197576 (or 197574 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 3951340 is about 1987.7977764350. The cubic root of 3951340 is about 158.0937861180.

The spelling of 3951340 in words is "three million, nine hundred fifty-one thousand, three hundred forty".