40028248 has 32 divisors (see below), whose sum is σ = 81088560. Its totient is φ = 18414720.

The previous prime is 40028213. The next prime is 40028291. The reversal of 40028248 is 84282004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57583 + ... + 58273.

Almost surely, 2^40028248 is an apocalyptic number.

It is an amenable number.

40028248 is an abundant number, since it is smaller than the sum of its proper divisors (41060312).

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

40028248 is a wasteful number, since it uses less digits than its factorization.

40028248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 40028248 is about 6326.7881266880. The cubic root of 40028248 is about 342.0756760593.

The spelling of 40028248 in words is "forty million, twenty-eight thousand, two hundred forty-eight".