47309136 has 80 divisors (see below), whose sum is σ = 141133824. Its totient is φ = 13375872.

The previous prime is 47309117. The next prime is 47309149. The reversal of 47309136 is 63190374.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47309097 and 47309106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33925 + ... + 35291.

Almost surely, 2^47309136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47309136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70566912).

47309136 is an abundant number, since it is smaller than the sum of its proper divisors (93824688).

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

47309136 is a wasteful number, since it uses less digits than its factorization.

47309136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1482 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 47309136 is about 6878.1637084327. The cubic root of 47309136 is about 361.6720980966.

The spelling of 47309136 in words is "forty-seven million, three hundred nine thousand, one hundred thirty-six".