1872506493 has 24 divisors (see below), whose sum is σ = 3177588960. Its totient is φ = 1047555360.

The previous prime is 1872506491. The next prime is 1872506513. The reversal of 1872506493 is 3946052781.

1872506493 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1872506493 - 2¹ = 1872506491 is a prime.

1872506493 is a modest number, since divided by 506493 gives 1872 as remainder.

1872506493 is strictly pandigital in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872506491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 726183 + ... + 728756.

It is an arithmetic number, because the mean of its divisors is an integer number (132399540).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1872506493 = 3745012986, but 3⋅1872506493 = 5617519479 is not.

Almost surely, 2^1872506493 is an apocalyptic number.

1872506493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1872506493 is a deficient number, since it is larger than the sum of its proper divisors (1305082467).

1872506493 is a wasteful number, since it uses less digits than its factorization.

1872506493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454969 (or 1454966 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1872506493 is about 43272.4680715117. The cubic root of 1872506493 is about 1232.5591709335.

The spelling of 1872506493 in words is "one billion, eight hundred seventy-two million, five hundred six thousand, four hundred ninety-three".