4079720 has 32 divisors (see below), whose sum is σ = 9498600. Its totient is φ = 1575168.

The previous prime is 4079707. The next prime is 4079729. The reversal of 4079720 is 279704.

It can be written as a sum of positive squares in 4 ways, for example, as 3976036 + 103684 = 1994^2 + 322^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (4079729) 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, 599 + ... + 2918.

Almost surely, 2^4079720 is an apocalyptic number.

4079720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4079720 is an abundant number, since it is smaller than the sum of its proper divisors (5418880).

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

4079720 is a wasteful number, since it uses less digits than its factorization.

4079720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 4079720 is about 2019.8316761552. The cubic root of 4079720 is about 159.7877393668.

The spelling of 4079720 in words is "four million, seventy-nine thousand, seven hundred twenty".