2400352021 has 8 divisors (see below), whose sum is σ = 2419718400. Its totient is φ = 2381031600.

The previous prime is 2400351971. The next prime is 2400352049. The reversal of 2400352021 is 1202530042.

2400352021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2400352021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2400352021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400352051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97515 + ... + 119623.

It is an arithmetic number, because the mean of its divisors is an integer number (302464800).

Almost surely, 2^2400352021 is an apocalyptic number.

It is an amenable number.

2400352021 is a deficient number, since it is larger than the sum of its proper divisors (19366379).

2400352021 is a wasteful number, since it uses less digits than its factorization.

2400352021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22979.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2400352021 is about 48993.3875232158. The cubic root of 2400352021 is about 1338.9313565354.

Adding to 2400352021 its reverse (1202530042), we get a palindrome (3602882063).

The spelling of 2400352021 in words is "two billion, four hundred million, three hundred fifty-two thousand, twenty-one".