28949350 has 48 divisors (see below), whose sum is σ = 58567680. Its totient is φ = 10605600.

The previous prime is 28949329. The next prime is 28949377. The reversal of 28949350 is 5394982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28959 + ... + 29941.

It is an arithmetic number, because the mean of its divisors is an integer number (1220160).

It is a vampire number, since it can be written as 2945 ⋅ 9830 (with its own digits).

Almost surely, 2^28949350 is an apocalyptic number.

28949350 is an abundant number, since it is smaller than the sum of its proper divisors (29618330).

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

28949350 is a wasteful number, since it uses less digits than its factorization.

28949350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 28949350 is about 5380.4600175078. The cubic root of 28949350 is about 307.0527129933.

The spelling of 28949350 in words is "twenty-eight million, nine hundred forty-nine thousand, three hundred fifty".