125428940 has 48 divisors (see below), whose sum is σ = 324190272. Its totient is φ = 39695616.

The previous prime is 125428939. The next prime is 125428943. The reversal of 125428940 is 49824521.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 125428940.

It is not an unprimeable number, because it can be changed into a prime (125428943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32639 + ... + 36278.

It is an arithmetic number, because the mean of its divisors is an integer number (6753964).

Almost surely, 2^125428940 is an apocalyptic number.

125428940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125428940 is an abundant number, since it is smaller than the sum of its proper divisors (198761332).

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

125428940 is a wasteful number, since it uses less digits than its factorization.

125428940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68946 (or 68944 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 125428940 is about 11199.5062391161. The cubic root of 125428940 is about 500.5712670593.

The spelling of 125428940 in words is "one hundred twenty-five million, four hundred twenty-eight thousand, nine hundred forty".