240400400203 has 8 divisors (see below), whose sum is σ = 242931510800. Its totient is φ = 237882171168.

The previous prime is 240400400167. The next prime is 240400400243. The reversal of 240400400203 is 302004004042.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240400400203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240400400243) 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, 3182868 + ... + 3257521.

It is an arithmetic number, because the mean of its divisors is an integer number (30366438850).

Almost surely, 2^240400400203 is an apocalyptic number.

240400400203 is a deficient number, since it is larger than the sum of its proper divisors (2531110597).

240400400203 is a wasteful number, since it uses less digits than its factorization.

240400400203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440781.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 240400400203 its reverse (302004004042), we get a palindrome (542404404245).

The spelling of 240400400203 in words is "two hundred forty billion, four hundred million, four hundred thousand, two hundred three".