47934390 has 128 divisors (see below), whose sum is σ = 144322560. Its totient is φ = 9934848.

The previous prime is 47934389. The next prime is 47934431. The reversal of 47934390 is 9343974.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103299 + ... + 103761.

It is an arithmetic number, because the mean of its divisors is an integer number (1127520).

Almost surely, 2^47934390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47934390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72161280).

47934390 is an abundant number, since it is smaller than the sum of its proper divisors (96388170).

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

47934390 is a wasteful number, since it uses less digits than its factorization.

47934390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 47934390 is about 6923.4666172374. The cubic root of 47934390 is about 363.2584579503.

The spelling of 47934390 in words is "forty-seven million, nine hundred thirty-four thousand, three hundred ninety".