240012420 has 48 divisors (see below), whose sum is σ = 673068480. Its totient is φ = 63904896.

The previous prime is 240012419. The next prime is 240012431. The reversal of 240012420 is 24210042.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 240012420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41634 + ... + 47046.

It is an arithmetic number, because the mean of its divisors is an integer number (14022260).

Almost surely, 2^240012420 is an apocalyptic number.

240012420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240012420 is an abundant number, since it is smaller than the sum of its proper divisors (433056060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

240012420 is a wasteful number, since it uses less digits than its factorization.

240012420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6164 (or 6162 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 240012420 is about 15492.3342334201. The cubic root of 240012420 is about 621.4572209580.

Adding to 240012420 its reverse (24210042), we get a palindrome (264222462).

The spelling of 240012420 in words is "two hundred forty million, twelve thousand, four hundred twenty".