1938087253 has 16 divisors (see below), whose sum is σ = 2011680000. Its totient is φ = 1866100032.

The previous prime is 1938087251. The next prime is 1938087287. The reversal of 1938087253 is 3527808391.

It is not a de Polignac number, because 1938087253 - 2¹ = 1938087251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938087251) 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 15 ways as a sum of consecutive naturals, for example, 762058 + ... + 764596.

It is an arithmetic number, because the mean of its divisors is an integer number (125730000).

Almost surely, 2^1938087253 is an apocalyptic number.

It is an amenable number.

1938087253 is a deficient number, since it is larger than the sum of its proper divisors (73592747).

1938087253 is a wasteful number, since it uses less digits than its factorization.

1938087253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1938087253 is about 44023.7123945721. The cubic root of 1938087253 is about 1246.7836786261.

The spelling of 1938087253 in words is "one billion, nine hundred thirty-eight million, eighty-seven thousand, two hundred fifty-three".