40528733 has 12 divisors (see below), whose sum is σ = 47254140. Its totient is φ = 34659072.

The previous prime is 40528723. The next prime is 40528751. The reversal of 40528733 is 33782504.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29888089 + 10640644 = 5467^2 + 3262^2 .

It is not a de Polignac number, because 40528733 - 2¹⁰ = 40527709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40528733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40528703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32363 + ... + 33591.

It is an arithmetic number, because the mean of its divisors is an integer number (3937845).

Almost surely, 2^40528733 is an apocalyptic number.

It is an amenable number.

40528733 is a deficient number, since it is larger than the sum of its proper divisors (6725407).

40528733 is a wasteful number, since it uses less digits than its factorization.

40528733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 40528733 is about 6366.2181081078. The cubic root of 40528733 is about 343.4954660972.

The spelling of 40528733 in words is "forty million, five hundred twenty-eight thousand, seven hundred thirty-three".