128340702 has 36 divisors (see below), whose sum is σ = 323473176. Its totient is φ = 36668520.

The previous prime is 128340683. The next prime is 128340733. The reversal of 128340702 is 207043821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 71874 + ... + 73637.

It is an arithmetic number, because the mean of its divisors is an integer number (8985366).

Almost surely, 2^128340702 is an apocalyptic number.

128340702 is an abundant number, since it is smaller than the sum of its proper divisors (195132474).

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

128340702 is a wasteful number, since it uses less digits than its factorization.

128340702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145533 (or 145523 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 128340702 is about 11328.7555362449. The cubic root of 128340702 is about 504.4151671737.

The spelling of 128340702 in words is "one hundred twenty-eight million, three hundred forty thousand, seven hundred two".