40426765 has 24 divisors (see below), whose sum is σ = 52231752. Its totient is φ = 30028800.

The previous prime is 40426753. The next prime is 40426781. The reversal of 40426765 is 56762404.

40426765 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 12 ways, for example, as 116964 + 40309801 = 342^2 + 6349^2 .

It is not a de Polignac number, because 40426765 - 2⁵ = 40426733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40426765.

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 23 ways as a sum of consecutive naturals, for example, 145807 + ... + 146083.

It is an arithmetic number, because the mean of its divisors is an integer number (2176323).

Almost surely, 2^40426765 is an apocalyptic number.

It is an amenable number.

40426765 is a deficient number, since it is larger than the sum of its proper divisors (11804987).

40426765 is a wasteful number, since it uses less digits than its factorization.

40426765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 40426765 is about 6358.2045421644. The cubic root of 40426765 is about 343.2071524465.

The spelling of 40426765 in words is "forty million, four hundred twenty-six thousand, seven hundred sixty-five".