47180988 has 48 divisors (see below), whose sum is σ = 122805760. Its totient is φ = 15664752.

The previous prime is 47180983. The next prime is 47180989. The reversal of 47180988 is 88908174.

It is a super-2 number, since 2×47180988² = 4452091257312288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47180983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32445 + ... + 33867.

Almost surely, 2^47180988 is an apocalyptic number.

It is an amenable number.

47180988 is an abundant number, since it is smaller than the sum of its proper divisors (75624772).

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

47180988 is a wasteful number, since it uses less digits than its factorization.

47180988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743 (or 1735 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 47180988 is about 6868.8418237720. The cubic root of 47180988 is about 361.3452446188.

The spelling of 47180988 in words is "forty-seven million, one hundred eighty thousand, nine hundred eighty-eight".