43950420 has 144 divisors (see below), whose sum is σ = 143095680. Its totient is φ = 10886400.

The previous prime is 43950419. The next prime is 43950443. The reversal of 43950420 is 2405934.

It is a super-4 number, since 4×43950420⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242730 + ... + 242910.

It is an arithmetic number, because the mean of its divisors is an integer number (993720).

Almost surely, 2^43950420 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 43950420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71547840).

43950420 is an abundant number, since it is smaller than the sum of its proper divisors (99145260).

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

43950420 is a wasteful number, since it uses less digits than its factorization.

43950420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 43950420 is about 6629.5112942056. The cubic root of 43950420 is about 352.9021816722.

The spelling of 43950420 in words is "forty-three million, nine hundred fifty thousand, four hundred twenty".