47356640 has 48 divisors (see below), whose sum is σ = 114624720. Its totient is φ = 18478080.

The previous prime is 47356583. The next prime is 47356651. The reversal of 47356640 is 4665374.

It is a self number, because there is not a number n which added to its sum of digits gives 47356640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2951 + ... + 10169.

It is an arithmetic number, because the mean of its divisors is an integer number (2388015).

Almost surely, 2^47356640 is an apocalyptic number.

47356640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47356640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57312360).

47356640 is an abundant number, since it is smaller than the sum of its proper divisors (67268080).

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

47356640 is a wasteful number, since it uses less digits than its factorization.

47356640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275 (or 7267 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 47356640 is about 6881.6160892628. The cubic root of 47356640 is about 361.7931115375.

The spelling of 47356640 in words is "forty-seven million, three hundred fifty-six thousand, six hundred forty".