1623857484 has 24 divisors (see below), whose sum is σ = 3834653760. Its totient is φ = 534763984.

The previous prime is 1623857483. The next prime is 1623857509. The reversal of 1623857484 is 4847583261.

It is not an unprimeable number, because it can be changed into a prime (1623857483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814194 + ... + 816185.

It is an arithmetic number, because the mean of its divisors is an integer number (159777240).

Almost surely, 2^1623857484 is an apocalyptic number.

It is an amenable number.

1623857484 is an abundant number, since it is smaller than the sum of its proper divisors (2210796276).

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

1623857484 is a wasteful number, since it uses less digits than its factorization.

1623857484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630469 (or 1630467 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 1623857484 is about 40297.1150828443. The cubic root of 1623857484 is about 1175.3917472093.

The spelling of 1623857484 in words is "one billion, six hundred twenty-three million, eight hundred fifty-seven thousand, four hundred eighty-four".