40269520 has 20 divisors (see below), whose sum is σ = 93626820. Its totient is φ = 16107776.

The previous prime is 40269517. The next prime is 40269529. The reversal of 40269520 is 2596204.

40269520 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 4700224 + 35569296 = 2168^2 + 5964^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40269529) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 251605 + ... + 251764.

It is an arithmetic number, because the mean of its divisors is an integer number (4681341).

Almost surely, 2^40269520 is an apocalyptic number.

40269520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40269520 is an abundant number, since it is smaller than the sum of its proper divisors (53357300).

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

40269520 is a wasteful number, since it uses less digits than its factorization.

40269520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503382 (or 503376 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40269520 is about 6345.8269752649. The cubic root of 40269520 is about 342.7615917595.

The spelling of 40269520 in words is "forty million, two hundred sixty-nine thousand, five hundred twenty".