4012641 has 12 divisors (see below), whose sum is σ = 5891860. Its totient is φ = 2630880.

The previous prime is 4012639. The next prime is 4012669. The reversal of 4012641 is 1462104.

4012641 is a `hidden beast` number, since 401 + 264 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 772641 + 3240000 = 879^2 + 1800^2 .

It is not a de Polignac number, because 4012641 - 2¹ = 4012639 is a prime.

It is a super-2 number, since 2×4012641² = 32202575589762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4012601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3106 + ... + 4203.

Almost surely, 2^4012641 is an apocalyptic number.

It is an amenable number.

4012641 is a deficient number, since it is larger than the sum of its proper divisors (1879219).

4012641 is a wasteful number, since it uses less digits than its factorization.

4012641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7376 (or 7373 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4012641 is about 2003.1577571425. The cubic root of 4012641 is about 158.9071488261.

Adding to 4012641 its reverse (1462104), we get a palindrome (5474745).

The spelling of 4012641 in words is "four million, twelve thousand, six hundred forty-one".