47951340 has 48 divisors (see below), whose sum is σ = 135115008. Its totient is φ = 12705984.

The previous prime is 47951333. The next prime is 47951359. The reversal of 47951340 is 4315974.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7329 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (2814896).

Almost surely, 2^47951340 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 47951340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67557504).

47951340 is an abundant number, since it is smaller than the sum of its proper divisors (87163668).

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

47951340 is a wasteful number, since it uses less digits than its factorization.

47951340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078 (or 5076 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 47951340 is about 6924.6906068069. The cubic root of 47951340 is about 363.3012699778.

The spelling of 47951340 in words is "forty-seven million, nine hundred fifty-one thousand, three hundred forty".