4092040 has 16 divisors (see below), whose sum is σ = 9207180. Its totient is φ = 1636800.

The previous prime is 4092029. The next prime is 4092041. The reversal of 4092040 is 402904.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 195364 = 1974^2 + 442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4091999 and 4092017.

It is not an unprimeable number, because it can be changed into a prime (4092041) 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, 51111 + ... + 51190.

Almost surely, 2^4092040 is an apocalyptic number.

4092040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4092040 is an abundant number, since it is smaller than the sum of its proper divisors (5115140).

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

4092040 is a wasteful number, since it uses less digits than its factorization.

4092040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102312 (or 102308 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4092040 is about 2022.8791362808. The cubic root of 4092040 is about 159.9484208742.

Adding to 4092040 its reverse (402904), we get a palindrome (4494944).

The spelling of 4092040 in words is "four million, ninety-two thousand, forty".