47192940 has 72 divisors (see below), whose sum is σ = 143881920. Its totient is φ = 12520704.

The previous prime is 47192933. The next prime is 47193011. The reversal of 47192940 is 4929174.

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 = 47192895 and 47192904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42472 + ... + 43568.

It is an arithmetic number, because the mean of its divisors is an integer number (1998360).

Almost surely, 2^47192940 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 47192940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71940960).

47192940 is an abundant number, since it is smaller than the sum of its proper divisors (96688980).

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

47192940 is a wasteful number, since it uses less digits than its factorization.

47192940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 47192940 is about 6869.7117843473. The cubic root of 47192940 is about 361.3757543214.

It can be divided in two parts, 471929 and 40, that added together give a square (471969 = 687²).

The spelling of 47192940 in words is "forty-seven million, one hundred ninety-two thousand, nine hundred forty".