30203240 has 16 divisors (see below), whose sum is σ = 67957380. Its totient is φ = 12081280.

The previous prime is 30203233. The next prime is 30203273. The reversal of 30203240 is 4230203.

It can be written as a sum of positive squares in 2 ways, for example, as 26646244 + 3556996 = 5162^2 + 1886^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377501 + ... + 377580.

Almost surely, 2^30203240 is an apocalyptic number.

It is an amenable number.

30203240 is an abundant number, since it is smaller than the sum of its proper divisors (37754140).

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

30203240 is a wasteful number, since it uses less digits than its factorization.

30203240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755092 (or 755088 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 30203240 is about 5495.7474468902. The cubic root of 30203240 is about 311.4233541276.

Adding to 30203240 its reverse (4230203), we get a palindrome (34433443).

The spelling of 30203240 in words is "thirty million, two hundred three thousand, two hundred forty".