28125434 has 8 divisors (see below), whose sum is σ = 44408640. Its totient is φ = 13322556.

The previous prime is 28125431. The next prime is 28125437. The reversal of 28125434 is 43452182.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28125431) and next prime (28125437).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 28125397 and 28125406.

It is not an unprimeable number, because it can be changed into a prime (28125431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370034 + ... + 370109.

It is an arithmetic number, because the mean of its divisors is an integer number (5551080).

Almost surely, 2^28125434 is an apocalyptic number.

28125434 is a deficient number, since it is larger than the sum of its proper divisors (16283206).

28125434 is a wasteful number, since it uses less digits than its factorization.

28125434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740164.

The product of its digits is 7680, while the sum is 29.

The square root of 28125434 is about 5303.3417766537. The cubic root of 28125434 is about 304.1116640229. Note that the first 3 decimals are identical.

The spelling of 28125434 in words is "twenty-eight million, one hundred twenty-five thousand, four hundred thirty-four".