47420740 has 24 divisors (see below), whose sum is σ = 100258200. Its totient is φ = 18839808.

The previous prime is 47420699. The next prime is 47420749. The reversal of 47420740 is 4702474.

It can be written as a sum of positive squares in 4 ways, for example, as 3437316 + 43983424 = 1854^2 + 6632^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47420699 and 47420708.

It is not an unprimeable number, because it can be changed into a prime (47420749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4977 + ... + 10936.

It is an arithmetic number, because the mean of its divisors is an integer number (4177425).

Almost surely, 2^47420740 is an apocalyptic number.

It is an amenable number.

47420740 is an abundant number, since it is smaller than the sum of its proper divisors (52837460).

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

47420740 is a wasteful number, since it uses less digits than its factorization.

47420740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16071 (or 16069 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 47420740 is about 6886.2718505734. The cubic root of 47420740 is about 361.9562740344.

The spelling of 47420740 in words is "forty-seven million, four hundred twenty thousand, seven hundred forty".