47138434 has 16 divisors (see below), whose sum is σ = 80905536. Its totient is φ = 20178000.

The previous prime is 47138347. The next prime is 47138437. The reversal of 47138434 is 43483174.

It is a self number, because there is not a number n which added to its sum of digits gives 47138434.

It is not an unprimeable number, because it can be changed into a prime (47138437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15109 + ... + 17959.

It is an arithmetic number, because the mean of its divisors is an integer number (5056596).

Almost surely, 2^47138434 is an apocalyptic number.

47138434 is a deficient number, since it is larger than the sum of its proper divisors (33767102).

47138434 is a wasteful number, since it uses less digits than its factorization.

47138434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4041.

The product of its digits is 32256, while the sum is 34.

The square root of 47138434 is about 6865.7435139976. The cubic root of 47138434 is about 361.2365757714.

The spelling of 47138434 in words is "forty-seven million, one hundred thirty-eight thousand, four hundred thirty-four".