146678688 has 144 divisors (see below), whose sum is σ = 466161696. Its totient is φ = 45100800.

The previous prime is 146678683. The next prime is 146678711. The reversal of 146678688 is 886876641.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (146678683) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100363 + ... + 101813.

It is an arithmetic number, because the mean of its divisors is an integer number (3237234).

Almost surely, 2^146678688 is an apocalyptic number.

146678688 is a gapful number since it is divisible by the number (18) 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 146678688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233080848).

146678688 is an abundant number, since it is smaller than the sum of its proper divisors (319483008).

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

146678688 is a wasteful number, since it uses less digits than its factorization.

146678688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1469 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 146678688 is about 12111.0977206858. The cubic root of 146678688 is about 527.3784007276.

The spelling of 146678688 in words is "one hundred forty-six million, six hundred seventy-eight thousand, six hundred eighty-eight".