47716440 has 128 divisors (see below), whose sum is σ = 150405120. Its totient is φ = 12096000.

The previous prime is 47716439. The next prime is 47716463. The reversal of 47716440 is 4461774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375657 + ... + 375783.

It is an arithmetic number, because the mean of its divisors is an integer number (1175040).

Almost surely, 2^47716440 is an apocalyptic number.

47716440 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 47716440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75202560).

47716440 is an abundant number, since it is smaller than the sum of its proper divisors (102688680).

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

47716440 is a wasteful number, since it uses less digits than its factorization.

47716440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 47716440 is about 6907.7087373455. The cubic root of 47716440 is about 362.7070620433.

It can be divided in two parts, 4771 and 6440, that added together give a palindrome (11211).

The spelling of 47716440 in words is "forty-seven million, seven hundred sixteen thousand, four hundred forty".