43752420 has 48 divisors (see below), whose sum is σ = 136120320. Its totient is φ = 11667168.

The previous prime is 43752409. The next prime is 43752431. The reversal of 43752420 is 2425734.

It is an interprime number because it is at equal distance from previous prime (43752409) and next prime (43752431).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39972 + ... + 41051.

It is an arithmetic number, because the mean of its divisors is an integer number (2835840).

Almost surely, 2^43752420 is an apocalyptic number.

It is an amenable number.

43752420 is an abundant number, since it is smaller than the sum of its proper divisors (92367900).

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

43752420 is a wasteful number, since it uses less digits than its factorization.

43752420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81041 (or 81033 counting only the distinct ones).

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

The square root of 43752420 is about 6614.5612099368. The cubic root of 43752420 is about 352.3714334217.

The spelling of 43752420 in words is "forty-three million, seven hundred fifty-two thousand, four hundred twenty".