47156720 has 40 divisors (see below), whose sum is σ = 118075776. Its totient is φ = 17411328.

The previous prime is 47156717. The next prime is 47156729. The reversal of 47156720 is 2765174.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×47156720³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47156729) 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, 21632 + ... + 23711.

Almost surely, 2^47156720 is an apocalyptic number.

47156720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47156720 is an abundant number, since it is smaller than the sum of its proper divisors (70919056).

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

47156720 is a wasteful number, since it uses less digits than its factorization.

47156720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45369 (or 45363 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 47156720 is about 6867.0750687611. The cubic root of 47156720 is about 361.2832801801.

The spelling of 47156720 in words is "forty-seven million, one hundred fifty-six thousand, seven hundred twenty".