4080420 has 36 divisors (see below), whose sum is σ = 12377820. Its totient is φ = 1088064.

The previous prime is 4080413. The next prime is 4080431. The reversal of 4080420 is 240804.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2965284 + 1115136 = 1722^2 + 1056^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4080393 and 4080402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11155 + ... + 11514.

Almost surely, 2^4080420 is an apocalyptic number.

It is an amenable number.

4080420 is an abundant number, since it is smaller than the sum of its proper divisors (8297400).

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

4080420 is a wasteful number, since it uses less digits than its factorization.

4080420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22684 (or 22679 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 4080420 is about 2020.0049504890. The cubic root of 4080420 is about 159.7968776590.

The spelling of 4080420 in words is "four million, eighty thousand, four hundred twenty".