123857464 has 16 divisors (see below), whose sum is σ = 235173600. Its totient is φ = 61144512.

The previous prime is 123857443. The next prime is 123857467. The reversal of 123857464 is 464758321.

It is a super-2 number, since 2×123857464² = 30681342777022592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123857467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97357 + ... + 98620.

It is an arithmetic number, because the mean of its divisors is an integer number (14698350).

Almost surely, 2^123857464 is an apocalyptic number.

It is an amenable number.

123857464 is a deficient number, since it is larger than the sum of its proper divisors (111316136).

123857464 is a wasteful number, since it uses less digits than its factorization.

123857464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196062 (or 196058 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 123857464 is about 11129.1268300797. The cubic root of 123857464 is about 498.4719535721.

The spelling of 123857464 in words is "one hundred twenty-three million, eight hundred fifty-seven thousand, four hundred sixty-four".