47149776 has 120 divisors (see below), whose sum is σ = 139650784. Its totient is φ = 15396480.

The previous prime is 47149771. The next prime is 47149787. The reversal of 47149776 is 67794174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47149771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260406 + ... + 260586.

Almost surely, 2^47149776 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 47149776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69825392).

47149776 is an abundant number, since it is smaller than the sum of its proper divisors (92501008).

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

47149776 is a wasteful number, since it uses less digits than its factorization.

47149776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 253 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 47149776 is about 6866.5694491500. The cubic root of 47149776 is about 361.2655458802.

The spelling of 47149776 in words is "forty-seven million, one hundred forty-nine thousand, seven hundred seventy-six".