240220403 has 8 divisors (see below), whose sum is σ = 248345328. Its totient is φ = 232210944.

The previous prime is 240220397. The next prime is 240220423. The reversal of 240220403 is 304022042.

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

It is a cyclic number.

It is not a de Polignac number, because 240220403 - 2⁶ = 240220339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240220423) 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, 24626 + ... + 32967.

It is an arithmetic number, because the mean of its divisors is an integer number (31043166).

Almost surely, 2^240220403 is an apocalyptic number.

240220403 is a deficient number, since it is larger than the sum of its proper divisors (8124925).

240220403 is an equidigital number, since it uses as much as digits as its factorization.

240220403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57733.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 240220403 is about 15499.0452286584. The cubic root of 240220403 is about 621.6366772552.

Adding to 240220403 its reverse (304022042), we get a palindrome (544242445).

The spelling of 240220403 in words is "two hundred forty million, two hundred twenty thousand, four hundred three".