3974340 has 24 divisors (see below), whose sum is σ = 11128320. Its totient is φ = 1059808.

The previous prime is 3974309. The next prime is 3974351. The reversal of 3974340 is 434793.

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

It is a junction number, because it is equal to n+sod(n) for n = 3974298 and 3974307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33060 + ... + 33179.

It is an arithmetic number, because the mean of its divisors is an integer number (463680).

Almost surely, 2^3974340 is an apocalyptic number.

3974340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3974340 is an abundant number, since it is smaller than the sum of its proper divisors (7153980).

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

3974340 is a wasteful number, since it uses less digits than its factorization.

3974340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66251 (or 66249 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 3974340 is about 1993.5746788119. The cubic root of 3974340 is about 158.3999375064.

The spelling of 3974340 in words is "three million, nine hundred seventy-four thousand, three hundred forty".