47403720 has 192 divisors, whose sum is σ = 189745920. Its totient is φ = 9994752.

The previous prime is 47403709. The next prime is 47403721. The reversal of 47403720 is 2730474.

It is a super-2 number, since 2×47403720² = 4494225339676800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47403721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32037 + ... + 33483.

It is an arithmetic number, because the mean of its divisors is an integer number (988260).

Almost surely, 2^47403720 is an apocalyptic number.

47403720 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 47403720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94872960).

47403720 is an abundant number, since it is smaller than the sum of its proper divisors (142342200).

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

47403720 is a wasteful number, since it uses less digits than its factorization.

47403720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 47403720 is about 6885.0359476186. The cubic root of 47403720 is about 361.9129650451.

The spelling of 47403720 in words is "forty-seven million, four hundred three thousand, seven hundred twenty".