2421430040 has 64 divisors (see below), whose sum is σ = 5506250400. Its totient is φ = 958307328.

The previous prime is 2421430019. The next prime is 2421430043. The reversal of 2421430040 is 400341242.

It is a super-2 number, since 2×2421430040² = 11726646877228803200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2421429994 and 2421430021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421430043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206772 + ... + 2207868.

Almost surely, 2^2421430040 is an apocalyptic number.

2421430040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421430040 is an abundant number, since it is smaller than the sum of its proper divisors (3084820360).

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

2421430040 is a wasteful number, since it uses less digits than its factorization.

2421430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2421430040 is about 49208.0282067876. The cubic root of 2421430040 is about 1342.8390907703.

Adding to 2421430040 its reverse (400341242), we get a palindrome (2821771282).

The spelling of 2421430040 in words is "two billion, four hundred twenty-one million, four hundred thirty thousand, forty".