240030893 has 4 divisors (see below), whose sum is σ = 240420540. Its totient is φ = 239641248.

The previous prime is 240030841. The next prime is 240030911. The reversal of 240030893 is 398030042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128981449 + 111049444 = 11357^2 + 10538^2 .

It is a cyclic number.

It is not a de Polignac number, because 240030893 - 2¹² = 240026797 is a prime.

It is a super-2 number, since 2×240030893² = 115229659188754898, 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 (240039893) 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, 193898 + ... + 195131.

It is an arithmetic number, because the mean of its divisors is an integer number (60105135).

Almost surely, 2^240030893 is an apocalyptic number.

It is an amenable number.

240030893 is a deficient number, since it is larger than the sum of its proper divisors (389647).

240030893 is an equidigital number, since it uses as much as digits as its factorization.

240030893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389646.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 240030893 is about 15492.9304200335. The cubic root of 240030893 is about 621.4731644173.

The spelling of 240030893 in words is "two hundred forty million, thirty thousand, eight hundred ninety-three".