4030641 has 32 divisors (see below), whose sum is σ = 6428800. Its totient is φ = 2519424.

The previous prime is 4030633. The next prime is 4030657. The reversal of 4030641 is 1460304.

It is not a de Polignac number, because 4030641 - 2³ = 4030633 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4030141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41505 + ... + 41601.

It is an arithmetic number, because the mean of its divisors is an integer number (200900).

Almost surely, 2^4030641 is an apocalyptic number.

It is an amenable number.

4030641 is a deficient number, since it is larger than the sum of its proper divisors (2398159).

4030641 is an frugal number, since it uses more digits than its factorization.

4030641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4030641 is about 2007.6456360623. The cubic root of 4030641 is about 159.1444042338.

Adding to 4030641 its reverse (1460304), we get a palindrome (5490945).

The spelling of 4030641 in words is "four million, thirty thousand, six hundred forty-one".