1938074553 has 48 divisors (see below), whose sum is σ = 3105648000. Its totient is φ = 1193002272.

The previous prime is 1938074527. The next prime is 1938074569. The reversal of 1938074553 is 3554708391.

1938074553 is a `hidden beast` number, since 1 + 93 + 8 + 0 + 7 + 4 + 553 = 666.

It is not a de Polignac number, because 1938074553 - 2⁸ = 1938074297 is a prime.

It is a super-2 number, since 2×1938074553² = 7512265945972299618, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1938074499 and 1938074508.

It is not an unprimeable number, because it can be changed into a prime (1938074513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 411868 + ... + 416546.

It is an arithmetic number, because the mean of its divisors is an integer number (64701000).

Almost surely, 2^1938074553 is an apocalyptic number.

It is an amenable number.

1938074553 is a deficient number, since it is larger than the sum of its proper divisors (1167573447).

1938074553 is a wasteful number, since it uses less digits than its factorization.

1938074553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4763 (or 4734 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1938074553 is about 44023.5681538878. The cubic root of 1938074553 is about 1246.7809552903.

The spelling of 1938074553 in words is "one billion, nine hundred thirty-eight million, seventy-four thousand, five hundred fifty-three".