47180438 has 16 divisors (see below), whose sum is σ = 71836416. Its totient is φ = 23237760.

The previous prime is 47180431. The next prime is 47180443. The reversal of 47180438 is 83408174.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 47180398 and 47180407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47180431) 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, 42620 + ... + 43712.

It is an arithmetic number, because the mean of its divisors is an integer number (4489776).

Almost surely, 2^47180438 is an apocalyptic number.

47180438 is a deficient number, since it is larger than the sum of its proper divisors (24655978).

47180438 is a wasteful number, since it uses less digits than its factorization.

47180438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 47180438 is about 6868.8017877939. The cubic root of 47180438 is about 361.3438405176.

The spelling of 47180438 in words is "forty-seven million, one hundred eighty thousand, four hundred thirty-eight".