3643242426 has 24 divisors (see below), whose sum is σ = 8358027444. Its totient is φ = 1142977920.

The previous prime is 3643242377. The next prime is 3643242439. The reversal of 3643242426 is 6242423463.

3643242426 is a `hidden beast` number, since 3 + 643 + 2 + 4 + 2 + 4 + 2 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3575920401 + 67322025 = 59799^2 + 8205^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5952705 + ... + 5953316.

Almost surely, 2^3643242426 is an apocalyptic number.

3643242426 is an abundant number, since it is smaller than the sum of its proper divisors (4714785018).

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

3643242426 is a wasteful number, since it uses less digits than its factorization.

3643242426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11906046 (or 11906043 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

The square root of 3643242426 is about 60359.2778783842. The cubic root of 3643242426 is about 1538.7309534534.

Adding to 3643242426 its reverse (6242423463), we get a palindrome (9885665889).

The spelling of 3643242426 in words is "three billion, six hundred forty-three million, two hundred forty-two thousand, four hundred twenty-six".