47347380 has 72 divisors (see below), whose sum is σ = 152078472. Its totient is φ = 11882496.

The previous prime is 47347369. The next prime is 47347387. The reversal of 47347380 is 8374374.

It can be written as a sum of positive squares in 4 ways, for example, as 8259876 + 39087504 = 2874^2 + 6252^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47347387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4677 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (2112201).

Almost surely, 2^47347380 is an apocalyptic number.

It is an amenable number.

47347380 is an abundant number, since it is smaller than the sum of its proper divisors (104731092).

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

47347380 is a wasteful number, since it uses less digits than its factorization.

47347380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15505 (or 15500 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 47347380 is about 6880.9432492937. The cubic root of 47347380 is about 361.7695286243.

The spelling of 47347380 in words is "forty-seven million, three hundred forty-seven thousand, three hundred eighty".