47149344 has 192 divisors, whose sum is σ = 154949760. Its totient is φ = 13939200.

The previous prime is 47149343. The next prime is 47149351. The reversal of 47149344 is 44394174.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47149299 and 47149308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47149343) 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, 1149964 + ... + 1150004.

It is an arithmetic number, because the mean of its divisors is an integer number (807030).

Almost surely, 2^47149344 is an apocalyptic number.

47149344 is a gapful number since it is divisible by the number (44) 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 47149344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77474880).

47149344 is an abundant number, since it is smaller than the sum of its proper divisors (107800416).

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

47149344 is a wasteful number, since it uses less digits than its factorization.

47149344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 57 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 47149344 is about 6866.5379923219. The cubic root of 47149344 is about 361.2644425367.

The spelling of 47149344 in words is "forty-seven million, one hundred forty-nine thousand, three hundred forty-four".