4000770 has 24 divisors (see below), whose sum is σ = 10402236. Its totient is φ = 1066848.

The previous prime is 4000751. The next prime is 4000813. The reversal of 4000770 is 770004.

It can be written as a sum of positive squares in 2 ways, for example, as 3767481 + 233289 = 1941^2 + 483^2 .

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

It is a Curzon number.

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, 22137 + ... + 22316.

Almost surely, 2^4000770 is an apocalyptic number.

4000770 is an abundant number, since it is smaller than the sum of its proper divisors (6401466).

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

4000770 is a wasteful number, since it uses less digits than its factorization.

4000770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44466 (or 44463 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 18.

The square root of 4000770 is about 2000.1924907368. The cubic root of 4000770 is about 158.7502903667.

Adding to 4000770 its reverse (770004), we get a palindrome (4770774).

The spelling of 4000770 in words is "four million, seven hundred seventy", and thus it is an aban number.