47491248 has 80 divisors (see below), whose sum is σ = 140990976. Its totient is φ = 13493760.

The previous prime is 47491237. The next prime is 47491253. The reversal of 47491248 is 84219474.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94165 + ... + 94667.

Almost surely, 2^47491248 is an apocalyptic number.

47491248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47491248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70495488).

47491248 is an abundant number, since it is smaller than the sum of its proper divisors (93499728).

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

47491248 is a wasteful number, since it uses less digits than its factorization.

47491248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 796 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 47491248 is about 6891.3894099811. The cubic root of 47491248 is about 362.1355779619.

The spelling of 47491248 in words is "forty-seven million, four hundred ninety-one thousand, two hundred forty-eight".