134378428 has 24 divisors (see below), whose sum is σ = 244024704. Its totient is φ = 64680000.

The previous prime is 134378417. The next prime is 134378429. The reversal of 134378428 is 824873431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134378429) 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, 21678 + ... + 27178.

It is an arithmetic number, because the mean of its divisors is an integer number (10167696).

Almost surely, 2^134378428 is an apocalyptic number.

It is an amenable number.

134378428 is a deficient number, since it is larger than the sum of its proper divisors (109646276).

134378428 is a wasteful number, since it uses less digits than its factorization.

134378428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5733 (or 5731 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 134378428 is about 11592.1709787253. The cubic root of 134378428 is about 512.2042591182.

The spelling of 134378428 in words is "one hundred thirty-four million, three hundred seventy-eight thousand, four hundred twenty-eight".