240242403 has 8 divisors (see below), whose sum is σ = 337182400. Its totient is φ = 151732008.

The previous prime is 240242399. The next prime is 240242413. The reversal of 240242403 is 304242042.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 240242403 - 2² = 240242399 is a prime.

It is a super-3 number, since 3×240242403³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240242403.

It is not an unprimeable number, because it can be changed into a prime (240242413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107333 + ... + 2107446.

It is an arithmetic number, because the mean of its divisors is an integer number (42147800).

Almost surely, 2^240242403 is an apocalyptic number.

240242403 is a deficient number, since it is larger than the sum of its proper divisors (96939997).

240242403 is a wasteful number, since it uses less digits than its factorization.

240242403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214801.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240242403 is about 15499.7549335465. The cubic root of 240242403 is about 621.6556537024.

Adding to 240242403 its reverse (304242042), we get a palindrome (544484445).

The spelling of 240242403 in words is "two hundred forty million, two hundred forty-two thousand, four hundred three".