28346145 has 8 divisors (see below), whose sum is σ = 45353856. Its totient is φ = 15117936.

The previous prime is 28346113. The next prime is 28346147. The reversal of 28346145 is 54164382.

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

It is not a de Polignac number, because 28346145 - 2⁵ = 28346113 is a prime.

It is a super-2 number, since 2×28346145² = 1607007872722050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28346147) 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, 944857 + ... + 944886.

It is an arithmetic number, because the mean of its divisors is an integer number (5669232).

Almost surely, 2^28346145 is an apocalyptic number.

It is an amenable number.

28346145 is a deficient number, since it is larger than the sum of its proper divisors (17007711).

28346145 is a wasteful number, since it uses less digits than its factorization.

28346145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889751.

The product of its digits is 23040, while the sum is 33.

The square root of 28346145 is about 5324.1097847434. The cubic root of 28346145 is about 304.9050855786.

The spelling of 28346145 in words is "twenty-eight million, three hundred forty-six thousand, one hundred forty-five".