240420415 has 4 divisors (see below), whose sum is σ = 288504504. Its totient is φ = 192336328.

The previous prime is 240420391. The next prime is 240420431. The reversal of 240420415 is 514024042.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 240420415 - 2⁷ = 240420287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24042037 + ... + 24042046.

It is an arithmetic number, because the mean of its divisors is an integer number (72126126).

Almost surely, 2^240420415 is an apocalyptic number.

240420415 is a deficient number, since it is larger than the sum of its proper divisors (48084089).

240420415 is an equidigital number, since it uses as much as digits as its factorization.

240420415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48084088.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 240420415 is about 15505.4962835763. The cubic root of 240420415 is about 621.8091581681.

Adding to 240420415 its reverse (514024042), we get a palindrome (754444457).

The spelling of 240420415 in words is "two hundred forty million, four hundred twenty thousand, four hundred fifteen".