43998772 has 12 divisors (see below), whose sum is σ = 79079140. Its totient is φ = 21404736.

The previous prime is 43998749. The next prime is 43998791. The reversal of 43998772 is 27789934.

It can be written as a sum of positive squares in 2 ways, for example, as 29528356 + 14470416 = 5434^2 + 3804^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148497 + ... + 148792.

Almost surely, 2^43998772 is an apocalyptic number.

It is an amenable number.

43998772 is a deficient number, since it is larger than the sum of its proper divisors (35080368).

43998772 is a wasteful number, since it uses less digits than its factorization.

43998772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297330 (or 297328 counting only the distinct ones).

The product of its digits is 762048, while the sum is 49.

The square root of 43998772 is about 6633.1570160822. The cubic root of 43998772 is about 353.0315492083.

The spelling of 43998772 in words is "forty-three million, nine hundred ninety-eight thousand, seven hundred seventy-two".