2366397638 has 16 divisors (see below), whose sum is σ = 3925334736. Its totient is φ = 1060899840.

The previous prime is 2366397623. The next prime is 2366397647. The reversal of 2366397638 is 8367936632.

It is a super-2 number, since 2×2366397638² = 11199675562263958088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2366397638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 735131 + ... + 738342.

It is an arithmetic number, because the mean of its divisors is an integer number (245333421).

Almost surely, 2^2366397638 is an apocalyptic number.

2366397638 is a deficient number, since it is larger than the sum of its proper divisors (1558937098).

2366397638 is a wasteful number, since it uses less digits than its factorization.

2366397638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473559.

The product of its digits is 5878656, while the sum is 53.

The square root of 2366397638 is about 48645.6332880969. The cubic root of 2366397638 is about 1332.5880294831.

It can be divided in two parts, 2366 and 397638, that added together give a palindrome (400004).

The spelling of 2366397638 in words is "two billion, three hundred sixty-six million, three hundred ninety-seven thousand, six hundred thirty-eight".