47223540 has 288 divisors, whose sum is σ = 186842880. Its totient is φ = 9642240.

The previous prime is 47223529. The next prime is 47223551. The reversal of 47223540 is 4532274.

It is an interprime number because it is at equal distance from previous prime (47223529) and next prime (47223551).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1523325 + ... + 1523355.

It is an arithmetic number, because the mean of its divisors is an integer number (648760).

Almost surely, 2^47223540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47223540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93421440).

47223540 is an abundant number, since it is smaller than the sum of its proper divisors (139619340).

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

47223540 is a wasteful number, since it uses less digits than its factorization.

47223540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 61 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 47223540 is about 6871.9385911110. The cubic root of 47223540 is about 361.4538430420.

The spelling of 47223540 in words is "forty-seven million, two hundred twenty-three thousand, five hundred forty".