3940258 has 16 divisors (see below), whose sum is σ = 7110720. Its totient is φ = 1599696.

The previous prime is 3940253. The next prime is 3940267. The reversal of 3940258 is 8520493.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3940253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7141 + ... + 7672.

It is an arithmetic number, because the mean of its divisors is an integer number (444420).

Almost surely, 2^3940258 is an apocalyptic number.

3940258 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3940258 is a deficient number, since it is larger than the sum of its proper divisors (3170462).

3940258 is a wasteful number, since it uses less digits than its factorization.

3940258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14841.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3940258 is about 1985.0083123252. The cubic root of 3940258 is about 157.9458501615.

The spelling of 3940258 in words is "three million, nine hundred forty thousand, two hundred fifty-eight".