47540385 has 32 divisors (see below), whose sum is σ = 85092480. Its totient is φ = 25182144.

The previous prime is 47540351. The next prime is 47540399. The reversal of 47540385 is 58304574.

It is not a de Polignac number, because 47540385 - 2¹² = 47536289 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20074 + ... + 22316.

It is an arithmetic number, because the mean of its divisors is an integer number (2659140).

Almost surely, 2^47540385 is an apocalyptic number.

47540385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47540385 is a deficient number, since it is larger than the sum of its proper divisors (37552095).

47540385 is a wasteful number, since it uses less digits than its factorization.

47540385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414 (or 2408 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 47540385 is about 6894.9535894015. The cubic root of 47540385 is about 362.2604298957.

The spelling of 47540385 in words is "forty-seven million, five hundred forty thousand, three hundred eighty-five".