4166440 has 16 divisors (see below), whose sum is σ = 9374580. Its totient is φ = 1666560.

The previous prime is 4166419. The next prime is 4166447. The reversal of 4166440 is 446614.

It can be written as a sum of positive squares in 2 ways, for example, as 4153444 + 12996 = 2038^2 + 114^2 .

It is not an unprimeable number, because it can be changed into a prime (4166447) 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, 52041 + ... + 52120.

Almost surely, 2^4166440 is an apocalyptic number.

4166440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4166440 is an abundant number, since it is smaller than the sum of its proper divisors (5208140).

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

4166440 is a wasteful number, since it uses less digits than its factorization.

4166440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104172 (or 104168 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4166440 is about 2041.1859297967. The cubic root of 4166440 is about 160.9119794579.

The spelling of 4166440 in words is "four million, one hundred sixty-six thousand, four hundred forty".