43954128 has 30 divisors (see below), whose sum is σ = 123010914. Its totient is φ = 14651328.

The previous prime is 43954109. The next prime is 43954139. The reversal of 43954128 is 82145934.

It can be written as a sum of positive squares in only one way, i.e., 39841344 + 4112784 = 6312^2 + 2028^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43954092 and 43954101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152475 + ... + 152762.

Almost surely, 2^43954128 is an apocalyptic number.

43954128 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

43954128 is an abundant number, since it is smaller than the sum of its proper divisors (79056786).

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

43954128 is a wasteful number, since it uses less digits than its factorization.

43954128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305251 (or 305242 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 43954128 is about 6629.7909469304. The cubic root of 43954128 is about 352.9121059193.

It can be divided in two parts, 439541 and 28, that added together give a square (439569 = 663²).

The spelling of 43954128 in words is "forty-three million, nine hundred fifty-four thousand, one hundred twenty-eight".