2421154252 has 12 divisors (see below), whose sum is σ = 4622203656. Its totient is φ = 1100524640.

The previous prime is 2421154243. The next prime is 2421154273. The reversal of 2421154252 is 2524511242.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2421154252.

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, 27513073 + ... + 27513160.

It is an arithmetic number, because the mean of its divisors is an integer number (385183638).

Almost surely, 2^2421154252 is an apocalyptic number.

2421154252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2421154252 is a deficient number, since it is larger than the sum of its proper divisors (2201049404).

2421154252 is a wasteful number, since it uses less digits than its factorization.

2421154252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55026248 (or 55026246 counting only the distinct ones).

The product of its digits is 6400, while the sum is 28.

The square root of 2421154252 is about 49205.2258606746. The cubic root of 2421154252 is about 1342.7881080918.

Adding to 2421154252 its reverse (2524511242), we get a palindrome (4945665494).

The spelling of 2421154252 in words is "two billion, four hundred twenty-one million, one hundred fifty-four thousand, two hundred fifty-two".