240030493 has 4 divisors (see below), whose sum is σ = 240072480. Its totient is φ = 239988508.

The previous prime is 240030491. The next prime is 240030499. The reversal of 240030493 is 394030042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 240030493 - 2¹ = 240030491 is a prime.

It is a super-2 number, since 2×240030493² = 115229275139646098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240030491) 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, 10753 + ... + 24406.

It is an arithmetic number, because the mean of its divisors is an integer number (60018120).

Almost surely, 2^240030493 is an apocalyptic number.

It is an amenable number.

240030493 is a deficient number, since it is larger than the sum of its proper divisors (41987).

240030493 is an equidigital number, since it uses as much as digits as its factorization.

240030493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41986.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 240030493 is about 15492.9175109145. The cubic root of 240030493 is about 621.4728191986.

The spelling of 240030493 in words is "two hundred forty million, thirty thousand, four hundred ninety-three".