40443948 has 36 divisors (see below), whose sum is σ = 106022280. Its totient is φ = 13480992.

The previous prime is 40443937. The next prime is 40444007. The reversal of 40443948 is 84934404.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19833 + ... + 21776.

Almost surely, 2^40443948 is an apocalyptic number.

It is an amenable number.

40443948 is an abundant number, since it is smaller than the sum of its proper divisors (65578332).

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

40443948 is a wasteful number, since it uses less digits than its factorization.

40443948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41628 (or 41614 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 40443948 is about 6359.5556448544. Note that the first 3 decimals coincide. The cubic root of 40443948 is about 343.2557711703.

The spelling of 40443948 in words is "forty million, four hundred forty-three thousand, nine hundred forty-eight".