47280828 has 96 divisors (see below), whose sum is σ = 132579328. Its totient is φ = 12830400.

The previous prime is 47280803. The next prime is 47280833. The reversal of 47280828 is 82808274.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174333 + ... + 174603.

Almost surely, 2^47280828 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47280828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66289664).

47280828 is an abundant number, since it is smaller than the sum of its proper divisors (85298500).

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

47280828 is a wasteful number, since it uses less digits than its factorization.

47280828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 47280828 is about 6876.1055838316. The cubic root of 47280828 is about 361.5999467297.

It can be divided in two parts, 47 and 280828, that added together give a triangular number (280875 = T₇₄₉).

The spelling of 47280828 in words is "forty-seven million, two hundred eighty thousand, eight hundred twenty-eight".