2402121550 has 48 divisors (see below), whose sum is σ = 4737196800. Its totient is φ = 903679200.

The previous prime is 2402121523. The next prime is 2402121611. The reversal of 2402121550 is 551212042.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122955 + ... + 141145.

It is an arithmetic number, because the mean of its divisors is an integer number (98691600).

Almost surely, 2^2402121550 is an apocalyptic number.

2402121550 is a deficient number, since it is larger than the sum of its proper divisors (2335075250).

2402121550 is a wasteful number, since it uses less digits than its factorization.

2402121550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18361 (or 18356 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2402121550 is about 49011.4430515977. The cubic root of 2402121550 is about 1339.2602938295.

Adding to 2402121550 its reverse (551212042), we get a palindrome (2953333592).

The spelling of 2402121550 in words is "two billion, four hundred two million, one hundred twenty-one thousand, five hundred fifty".