40392045 has 12 divisors (see below), whose sum is σ = 70012956. Its totient is φ = 21542400.

The previous prime is 40392031. The next prime is 40392067. The reversal of 40392045 is 54029304.

40392045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17867529 + 22524516 = 4227^2 + 4746^2 .

It is not a de Polignac number, because 40392045 - 2¹¹ = 40389997 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448756 + ... + 448845.

It is an arithmetic number, because the mean of its divisors is an integer number (5834413).

Almost surely, 2^40392045 is an apocalyptic number.

40392045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40392045 is a deficient number, since it is larger than the sum of its proper divisors (29620911).

40392045 is a wasteful number, since it uses less digits than its factorization.

40392045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897612 (or 897609 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 40392045 is about 6355.4736251518. The cubic root of 40392045 is about 343.1088713093.

It can be divided in two parts, 4039 and 2045, that added together give a square (6084 = 78²).

The spelling of 40392045 in words is "forty million, three hundred ninety-two thousand, forty-five".