28753746 has 32 divisors (see below), whose sum is σ = 65940480. Its totient is φ = 8188176.

The previous prime is 28753729. The next prime is 28753757. The reversal of 28753746 is 64735782.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 28753698 and 28753707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14125 + ... + 16031.

It is an arithmetic number, because the mean of its divisors is an integer number (2060640).

Almost surely, 2^28753746 is an apocalyptic number.

28753746 is an abundant number, since it is smaller than the sum of its proper divisors (37186734).

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

28753746 is a wasteful number, since it uses less digits than its factorization.

28753746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278.

The product of its digits is 282240, while the sum is 42.

The square root of 28753746 is about 5362.2519523051. The cubic root of 28753746 is about 306.3595883799.

The spelling of 28753746 in words is "twenty-eight million, seven hundred fifty-three thousand, seven hundred forty-six".