28834740 has 72 divisors (see below), whose sum is σ = 95423328. Its totient is φ = 6989760.

The previous prime is 28834727. The next prime is 28834753. The reversal of 28834740 is 4743882.

It is an interprime number because it is at equal distance from previous prime (28834727) and next prime (28834753).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 28834695 and 28834704.

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, 5302 + ... + 9261.

It is an arithmetic number, because the mean of its divisors is an integer number (1325324).

Almost surely, 2^28834740 is an apocalyptic number.

28834740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28834740 is an abundant number, since it is smaller than the sum of its proper divisors (66588588).

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

28834740 is a wasteful number, since it uses less digits than its factorization.

28834740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14589 (or 14584 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 28834740 is about 5369.7988789153. The cubic root of 28834740 is about 306.6469715350.

The spelling of 28834740 in words is "twenty-eight million, eight hundred thirty-four thousand, seven hundred forty".