38364040402 has 4 divisors (see below), whose sum is σ = 57546060606. Its totient is φ = 19182020200.

The previous prime is 38364040397. The next prime is 38364040417. The reversal of 38364040402 is 20404046383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20404046383 = 7 ⋅2914863769.

It can be written as a sum of positive squares in only one way, i.e., 35705503681 + 2658536721 = 188959^2 + 51561^2 .

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 as a sum of consecutive naturals, namely, 9591010099 + ... + 9591010102.

Almost surely, 2^38364040402 is an apocalyptic number.

38364040402 is a deficient number, since it is larger than the sum of its proper divisors (19182020204).

38364040402 is a wasteful number, since it uses less digits than its factorization.

38364040402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19182020203.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 38364040402 its reverse (20404046383), we get a palindrome (58768086785).

The spelling of 38364040402 in words is "thirty-eight billion, three hundred sixty-four million, forty thousand, four hundred two".