30440006 has 4 divisors (see below), whose sum is σ = 45660012. Its totient is φ = 15220002.

The previous prime is 30439993. The next prime is 30440009. The reversal of 30440006 is 60004403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60004403 = 101 ⋅594103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30440009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7610000 + ... + 7610003.

It is an arithmetic number, because the mean of its divisors is an integer number (11415003).

Almost surely, 2^30440006 is an apocalyptic number.

30440006 is a deficient number, since it is larger than the sum of its proper divisors (15220006).

30440006 is a wasteful number, since it uses less digits than its factorization.

30440006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15220005.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30440006 is about 5517.2462334030. The cubic root of 30440006 is about 312.2349958164.

Adding to 30440006 its reverse (60004403), we get a palindrome (90444409).

The spelling of 30440006 in words is "thirty million, four hundred forty thousand, six".