128743416 has 24 divisors (see below), whose sum is σ = 348680280. Its totient is φ = 42914448.

The previous prime is 128743409. The next prime is 128743427. The reversal of 128743416 is 614347821.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 893980 + ... + 894123.

It is an arithmetic number, because the mean of its divisors is an integer number (14528345).

Almost surely, 2^128743416 is an apocalyptic number.

It is an amenable number.

128743416 is an abundant number, since it is smaller than the sum of its proper divisors (219936864).

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

128743416 is a wasteful number, since it uses less digits than its factorization.

128743416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788115 (or 1788108 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 128743416 is about 11346.5155884968. The cubic root of 128743416 is about 504.9422095095.

It can be divided in two parts, 12874 and 3416, that added together give a triangular number (16290 = T₁₈₀).

The spelling of 128743416 in words is "one hundred twenty-eight million, seven hundred forty-three thousand, four hundred sixteen".