47151780 has 96 divisors (see below), whose sum is σ = 144657408. Its totient is φ = 11404800.

The previous prime is 47151773. The next prime is 47151781. The reversal of 47151780 is 8715174.

It is not an unprimeable number, because it can be changed into a prime (47151781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47085 + ... + 48075.

It is an arithmetic number, because the mean of its divisors is an integer number (1506848).

Almost surely, 2^47151780 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 47151780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72328704).

47151780 is an abundant number, since it is smaller than the sum of its proper divisors (97505628).

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

47151780 is a wasteful number, since it uses less digits than its factorization.

47151780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 47151780 is about 6866.7153719956. The cubic root of 47151780 is about 361.2706640798.

The spelling of 47151780 in words is "forty-seven million, one hundred fifty-one thousand, seven hundred eighty".