1923138462 has 32 divisors (see below), whose sum is σ = 4397819904. Its totient is φ = 549208800.

The previous prime is 1923138461. The next prime is 1923138473. The reversal of 1923138462 is 2648313291.

It is a self number, because there is not a number n which added to its sum of digits gives 1923138462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923138461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90387 + ... + 109617.

It is an arithmetic number, because the mean of its divisors is an integer number (137431872).

Almost surely, 2^1923138462 is an apocalyptic number.

1923138462 is an abundant number, since it is smaller than the sum of its proper divisors (2474681442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1923138462 is a wasteful number, since it uses less digits than its factorization.

1923138462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21624.

The product of its digits is 62208, while the sum is 39.

The square root of 1923138462 is about 43853.6026114161. The cubic root of 1923138462 is about 1243.5698511602.

It can be divided in two parts, 1923 and 138462, that multiplied together give a triangular number (266262426 = T₂₃₀₇₆).

The spelling of 1923138462 in words is "one billion, nine hundred twenty-three million, one hundred thirty-eight thousand, four hundred sixty-two".