47745380 has 12 divisors (see below), whose sum is σ = 100265340. Its totient is φ = 19098144.

The previous prime is 47745377. The next prime is 47745391. The reversal of 47745380 is 8354774.

It can be written as a sum of positive squares in 2 ways, for example, as 10705984 + 37039396 = 3272^2 + 6086^2 .

It is a super-2 number, since 2×47745380² = 4559242622688800, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1193615 + ... + 1193654.

It is an arithmetic number, because the mean of its divisors is an integer number (8355445).

Almost surely, 2^47745380 is an apocalyptic number.

It is an amenable number.

47745380 is an abundant number, since it is smaller than the sum of its proper divisors (52519960).

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

47745380 is a wasteful number, since it uses less digits than its factorization.

47745380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387278 (or 2387276 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 47745380 is about 6909.8031809886. The cubic root of 47745380 is about 362.7803744489.

The spelling of 47745380 in words is "forty-seven million, seven hundred forty-five thousand, three hundred eighty".