47563440 has 80 divisors (see below), whose sum is σ = 149990400. Its totient is φ = 12464896.

The previous prime is 47563423. The next prime is 47563457. The reversal of 47563440 is 4436574.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47563423) and next prime (47563457).

It is a tau number, because it is divible by the number of its divisors (80).

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, 12481 + ... + 15839.

It is an arithmetic number, because the mean of its divisors is an integer number (1874880).

Almost surely, 2^47563440 is an apocalyptic number.

47563440 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 47563440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74995200).

47563440 is an abundant number, since it is smaller than the sum of its proper divisors (102426960).

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

47563440 is a wasteful number, since it uses less digits than its factorization.

47563440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434 (or 3428 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 47563440 is about 6896.6252616769. The cubic root of 47563440 is about 362.3189805678.

The spelling of 47563440 in words is "forty-seven million, five hundred sixty-three thousand, four hundred forty".