47780246 has 32 divisors (see below), whose sum is σ = 78140160. Its totient is φ = 21849696.

The previous prime is 47780237. The next prime is 47780261. The reversal of 47780246 is 64208774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113825 + ... + 114243.

It is an arithmetic number, because the mean of its divisors is an integer number (2441880).

Almost surely, 2^47780246 is an apocalyptic number.

47780246 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

47780246 is a deficient number, since it is larger than the sum of its proper divisors (30359914).

47780246 is a wasteful number, since it uses less digits than its factorization.

47780246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 47780246 is about 6912.3256578376. The cubic root of 47780246 is about 362.8686595904.

The spelling of 47780246 in words is "forty-seven million, seven hundred eighty thousand, two hundred forty-six".