30442023 has 12 divisors (see below), whose sum is σ = 44134168. Its totient is φ = 20219760.

The previous prime is 30442001. The next prime is 30442037. The reversal of 30442023 is 32024403.

It is not a de Polignac number, because 30442023 - 2⁸ = 30441767 is a prime.

It is a super-3 number, since 3×30442023³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30441987 and 30442005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30446023) 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, 3613 + ... + 8598.

Almost surely, 2^30442023 is an apocalyptic number.

30442023 is a deficient number, since it is larger than the sum of its proper divisors (13692145).

30442023 is a wasteful number, since it uses less digits than its factorization.

30442023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494 (or 12491 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 30442023 is about 5517.4290208393. The cubic root of 30442023 is about 312.2418920489.

Adding to 30442023 its reverse (32024403), we get a palindrome (62466426).

The spelling of 30442023 in words is "thirty million, four hundred forty-two thousand, twenty-three".