40528799 has 4 divisors (see below), whose sum is σ = 42912864. Its totient is φ = 38144736.

The previous prime is 40528793. The next prime is 40528837. The reversal of 40528799 is 99782504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40528799 - 2¹⁶ = 40463263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40528793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192007 + ... + 1192040.

It is an arithmetic number, because the mean of its divisors is an integer number (10728216).

Almost surely, 2^40528799 is an apocalyptic number.

40528799 is a deficient number, since it is larger than the sum of its proper divisors (2384065).

40528799 is a wasteful number, since it uses less digits than its factorization.

40528799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384064.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 40528799 is about 6366.2232917170. The cubic root of 40528799 is about 343.4956525549.

The spelling of 40528799 in words is "forty million, five hundred twenty-eight thousand, seven hundred ninety-nine".