47182840 has 16 divisors (see below), whose sum is σ = 106161480. Its totient is φ = 18873120.

The previous prime is 47182813. The next prime is 47182853. The reversal of 47182840 is 4828174.

It is a junction number, because it is equal to n+sod(n) for n = 47182796 and 47182805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589746 + ... + 589825.

Almost surely, 2^47182840 is an apocalyptic number.

47182840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47182840 is an abundant number, since it is smaller than the sum of its proper divisors (58978640).

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

47182840 is a wasteful number, since it uses less digits than its factorization.

47182840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179582 (or 1179578 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 47182840 is about 6868.9766341137. The cubic root of 47182840 is about 361.3499725305.

The spelling of 47182840 in words is "forty-seven million, one hundred eighty-two thousand, eight hundred forty".