4094040 has 64 divisors (see below), whose sum is σ = 12434400. Its totient is φ = 1078272.

The previous prime is 4094021. The next prime is 4094047. The reversal of 4094040 is 404904.

It is a happy number.

It is a super-2 number, since 2×4094040² = 33522327043200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4093998 and 4094016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4094047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12924 + ... + 13236.

Almost surely, 2^4094040 is an apocalyptic number.

4094040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4094040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6217200).

4094040 is an abundant number, since it is smaller than the sum of its proper divisors (8340360).

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

4094040 is a wasteful number, since it uses less digits than its factorization.

4094040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 4094040 is about 2023.3734208000. The cubic root of 4094040 is about 159.9744750949.

Adding to 4094040 its reverse (404904), we get a palindrome (4498944).

The spelling of 4094040 in words is "four million, ninety-four thousand, forty".