47378412 has 48 divisors (see below), whose sum is σ = 123523680. Its totient is φ = 15704064.

The previous prime is 47378399. The next prime is 47378417. The reversal of 47378412 is 21487374.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (47378417) by changing a digit.

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, 19708 + ... + 21980.

It is an arithmetic number, because the mean of its divisors is an integer number (2573410).

Almost surely, 2^47378412 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 47378412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61761840).

47378412 is an abundant number, since it is smaller than the sum of its proper divisors (76145268).

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

47378412 is a wasteful number, since it uses less digits than its factorization.

47378412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479 (or 2471 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 47378412 is about 6883.1978033469. The cubic root of 47378412 is about 361.8485472892.

The spelling of 47378412 in words is "forty-seven million, three hundred seventy-eight thousand, four hundred twelve".