43720470 has 48 divisors (see below), whose sum is σ = 118621152. Its totient is φ = 11151360.

The previous prime is 43720459. The next prime is 43720471. The reversal of 43720470 is 7402734.

It is a super-2 number, since 2×43720470² = 3822958994041800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43720471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8491 + ... + 12630.

It is an arithmetic number, because the mean of its divisors is an integer number (2471274).

Almost surely, 2^43720470 is an apocalyptic number.

43720470 is an abundant number, since it is smaller than the sum of its proper divisors (74900682).

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

43720470 is a wasteful number, since it uses less digits than its factorization.

43720470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21157 (or 21154 counting only the distinct ones).

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

The square root of 43720470 is about 6612.1456426791. The cubic root of 43720470 is about 352.2856400047.

The spelling of 43720470 in words is "forty-three million, seven hundred twenty thousand, four hundred seventy".