69128394 has 16 divisors (see below), whose sum is σ = 138399840. Its totient is φ = 23018960.

The previous prime is 69128393. The next prime is 69128407. The reversal of 69128394 is 49382196.

It is not an unprimeable number, because it can be changed into a prime (69128393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937 + ... + 11795.

It is an arithmetic number, because the mean of its divisors is an integer number (8649990).

Almost surely, 2^69128394 is an apocalyptic number.

69128394 is an abundant number, since it is smaller than the sum of its proper divisors (69271446).

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

69128394 is a wasteful number, since it uses less digits than its factorization.

69128394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11925.

The product of its digits is 93312, while the sum is 42.

The square root of 69128394 is about 8314.3486816467. The cubic root of 69128394 is about 410.4108394213.

The spelling of 69128394 in words is "sixty-nine million, one hundred twenty-eight thousand, three hundred ninety-four".