123378016 has 48 divisors (see below), whose sum is σ = 252201600. Its totient is φ = 59351040.

The previous prime is 123377983. The next prime is 123378029. The reversal of 123378016 is 610873321.

It is a Harshad number since it is a multiple of its sum of digits (31).

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 7 ways as a sum of consecutive naturals, for example, 274560 + ... + 275008.

It is an arithmetic number, because the mean of its divisors is an integer number (5254200).

Almost surely, 2^123378016 is an apocalyptic number.

123378016 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 123378016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126100800).

123378016 is an abundant number, since it is smaller than the sum of its proper divisors (128823584).

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

123378016 is a wasteful number, since it uses less digits than its factorization.

123378016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 759 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 123378016 is about 11107.5657099114. The cubic root of 123378016 is about 497.8279325763.

The spelling of 123378016 in words is "one hundred twenty-three million, three hundred seventy-eight thousand, sixteen".