2430020040 has 64 divisors (see below), whose sum is σ = 8331500160. Its totient is φ = 555432960.

The previous prime is 2430019951. The next prime is 2430020053. The reversal of 2430020040 is 400200342.

It is a happy number.

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

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, 1445601 + ... + 1447280.

It is an arithmetic number, because the mean of its divisors is an integer number (130179690).

Almost surely, 2^2430020040 is an apocalyptic number.

2430020040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2430020040 is an abundant number, since it is smaller than the sum of its proper divisors (5901480120).

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

2430020040 is a wasteful number, since it uses less digits than its factorization.

2430020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892902 (or 2892898 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2430020040 is about 49295.2334409728. The cubic root of 2430020040 is about 1344.4251197328.

Adding to 2430020040 its reverse (400200342), we get a palindrome (2830220382).

The spelling of 2430020040 in words is "two billion, four hundred thirty million, twenty thousand, forty".