47919438 has 40 divisors (see below), whose sum is σ = 122717232. Its totient is φ = 13690944.

The previous prime is 47919437. The next prime is 47919439. The reversal of 47919438 is 83491974.

It is an interprime number because it is at equal distance from previous prime (47919437) and next prime (47919439).

It is a junction number, because it is equal to n+sod(n) for n = 47919393 and 47919402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47919433) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19995 + ... + 22262.

Almost surely, 2^47919438 is an apocalyptic number.

47919438 is an abundant number, since it is smaller than the sum of its proper divisors (74797794).

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

47919438 is a wasteful number, since it uses less digits than its factorization.

47919438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42278 (or 42269 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 47919438 is about 6922.3867271339. The cubic root of 47919438 is about 363.2206840591.

The spelling of 47919438 in words is "forty-seven million, nine hundred nineteen thousand, four hundred thirty-eight".