30420024 has 16 divisors (see below), whose sum is σ = 76050120. Its totient is φ = 10140000.

The previous prime is 30420023. The next prime is 30420041. The reversal of 30420024 is 42002403.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30419985 and 30420012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633727 + ... + 633774.

Almost surely, 2^30420024 is an apocalyptic number.

It is an amenable number.

30420024 is an abundant number, since it is smaller than the sum of its proper divisors (45630096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30420024 is a wasteful number, since it uses less digits than its factorization.

30420024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267510 (or 1267506 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 30420024 is about 5515.4350689678. The cubic root of 30420024 is about 312.1666598096.

Adding to 30420024 its reverse (42002403), we get a palindrome (72422427).

The spelling of 30420024 in words is "thirty million, four hundred twenty thousand, twenty-four".