4012740 has 60 divisors (see below), whose sum is σ = 12593196. Its totient is φ = 1069632.

The previous prime is 4012721. The next prime is 4012747. The reversal of 4012740 is 472104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1726596 + 2286144 = 1314^2 + 1512^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×4012740² = 32204164615200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4012747) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 382 + ... + 2858.

Almost surely, 2^4012740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6296598).

4012740 is an abundant number, since it is smaller than the sum of its proper divisors (8580456).

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

4012740 is a wasteful number, since it uses less digits than its factorization.

4012740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2487 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 4012740 is about 2003.1824679744. The cubic root of 4012740 is about 158.9084556694.

Adding to 4012740 its reverse (472104), we get a palindrome (4484844).

The spelling of 4012740 in words is "four million, twelve thousand, seven hundred forty".