4521243402 has 48 divisors (see below), whose sum is σ = 10561293288. Its totient is φ = 1389605760.

The previous prime is 4521243317. The next prime is 4521243407. The reversal of 4521243402 is 2043421254.

4521243402 is a `hidden beast` number, since 4 + 5 + 212 + 43 + 402 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3728201481 + 793041921 = 61059^2 + 28161^2 .

It is not an unprimeable number, because it can be changed into a prime (4521243407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209928 + ... + 230460.

Almost surely, 2^4521243402 is an apocalyptic number.

4521243402 is an abundant number, since it is smaller than the sum of its proper divisors (6040049886).

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

4521243402 is a wasteful number, since it uses less digits than its factorization.

4521243402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21495 (or 21492 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4521243402 is about 67240.1918646876. The cubic root of 4521243402 is about 1653.5574792126.

Adding to 4521243402 its reverse (2043421254), we get a palindrome (6564664656).

The spelling of 4521243402 in words is "four billion, five hundred twenty-one million, two hundred forty-three thousand, four hundred two".