30640001 has 16 divisors (see below), whose sum is σ = 37293696. Its totient is φ = 24573696.

The previous prime is 30639953. The next prime is 30640019. The reversal of 30640001 is 10004603.

It is not a de Polignac number, because 30640001 - 2⁶ = 30639937 is a prime.

It is a super-2 number, since 2×30640001² = 1877619322560002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30640601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22790 + ... + 24096.

It is an arithmetic number, because the mean of its divisors is an integer number (2330856).

Almost surely, 2^30640001 is an apocalyptic number.

It is an amenable number.

30640001 is a deficient number, since it is larger than the sum of its proper divisors (6653695).

30640001 is a wasteful number, since it uses less digits than its factorization.

30640001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30640001 is about 5535.3410915679. The cubic root of 30640001 is about 312.9173125527.

Adding to 30640001 its reverse (10004603), we get a palindrome (40644604).

The spelling of 30640001 in words is "thirty million, six hundred forty thousand, one".