47943040 has 64 divisors (see below), whose sum is σ = 119633760. Its totient is φ = 18337792.

The previous prime is 47943037. The next prime is 47943067. The reversal of 47943040 is 4034974.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 47942993 and 47943011.

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, 13092 + ... + 16348.

Almost surely, 2^47943040 is an apocalyptic number.

47943040 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 47943040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59816880).

47943040 is an abundant number, since it is smaller than the sum of its proper divisors (71690720).

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

47943040 is a wasteful number, since it uses less digits than its factorization.

47943040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3299 (or 3287 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 47943040 is about 6924.0912761170. The cubic root of 47943040 is about 363.2803072369.

The spelling of 47943040 in words is "forty-seven million, nine hundred forty-three thousand, forty".