1023457688 has 24 divisors (see below), whose sum is σ = 2109297540. Its totient is φ = 465207600.

The previous prime is 1023457679. The next prime is 1023457691. The reversal of 1023457688 is 8867543201.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 527678 + ... + 529613.

Almost surely, 2^1023457688 is an apocalyptic number.

It is an amenable number.

1023457688 is an abundant number, since it is smaller than the sum of its proper divisors (1085839852).

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

1023457688 is a wasteful number, since it uses less digits than its factorization.

1023457688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057319 (or 1057304 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 1023457688 is about 31991.5252527916. The cubic root of 1023457688 is about 1007.7588735200.

The spelling of 1023457688 in words is "one billion, twenty-three million, four hundred fifty-seven thousand, six hundred eighty-eight".