1923650540 has 48 divisors (see below), whose sum is σ = 4817498112. Its totient is φ = 630860736.

The previous prime is 1923650527. The next prime is 1923650549. The reversal of 1923650540 is 450563291.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1923650540.

It is not an unprimeable number, because it can be changed into a prime (1923650549) 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, 295484 + ... + 301923.

It is an arithmetic number, because the mean of its divisors is an integer number (100364544).

Almost surely, 2^1923650540 is an apocalyptic number.

1923650540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1923650540 is an abundant number, since it is smaller than the sum of its proper divisors (2893847572).

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

1923650540 is a wasteful number, since it uses less digits than its factorization.

1923650540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597446 (or 597444 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 1923650540 is about 43859.4407169084. The cubic root of 1923650540 is about 1243.6802173250.

The spelling of 1923650540 in words is "one billion, nine hundred twenty-three million, six hundred fifty thousand, five hundred forty".