28745046 has 24 divisors (see below), whose sum is σ = 67943304. Its totient is φ = 8710560.

The previous prime is 28745023. The next prime is 28745047. The reversal of 28745046 is 64054782.

It is a self number, because there is not a number n which added to its sum of digits gives 28745046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28745047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72391 + ... + 72786.

It is an arithmetic number, because the mean of its divisors is an integer number (2830971).

Almost surely, 2^28745046 is an apocalyptic number.

28745046 is an abundant number, since it is smaller than the sum of its proper divisors (39198258).

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

28745046 is a wasteful number, since it uses less digits than its factorization.

28745046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145196 (or 145193 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 28745046 is about 5361.4406645975. The cubic root of 28745046 is about 306.3286869305.

It can be divided in two parts, 287450 and 46, that added together give a cube (287496 = 66³).

The spelling of 28745046 in words is "twenty-eight million, seven hundred forty-five thousand, forty-six".