123498816 has 84 divisors (see below), whose sum is σ = 380134368. Its totient is φ = 35282688.

The previous prime is 123498811. The next prime is 123498821. The reversal of 123498816 is 618894321.

It is an interprime number because it is at equal distance from previous prime (123498811) and next prime (123498821).

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123498811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2845 + ... + 15971.

Almost surely, 2^123498816 is an apocalyptic number.

123498816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123498816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190067184).

123498816 is an abundant number, since it is smaller than the sum of its proper divisors (256635552).

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

123498816 is a wasteful number, since it uses less digits than its factorization.

123498816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13156 (or 13139 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 123498816 is about 11113.0021146403. The cubic root of 123498816 is about 497.9903548075.

The spelling of 123498816 in words is "one hundred twenty-three million, four hundred ninety-eight thousand, eight hundred sixteen".