40756545 has 12 divisors (see below), whose sum is σ = 70644756. Its totient is φ = 21736800.

The previous prime is 40756511. The next prime is 40756553. The reversal of 40756545 is 54565704.

It is a happy number.

40756545 is a `hidden beast` number, since 40 + 75 + 6 + 545 = 666.

40756545 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 14470416 + 26286129 = 3804^2 + 5127^2 .

It is not a de Polignac number, because 40756545 - 2⁶ = 40756481 is a prime.

It is a super-2 number, since 2×40756545² = 3322191920674050, which contains 22 as substring.

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, 452806 + ... + 452895.

It is an arithmetic number, because the mean of its divisors is an integer number (5887063).

Almost surely, 2^40756545 is an apocalyptic number.

40756545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40756545 is a deficient number, since it is larger than the sum of its proper divisors (29888211).

40756545 is a wasteful number, since it uses less digits than its factorization.

40756545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905712 (or 905709 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 40756545 is about 6384.0852907836. The cubic root of 40756545 is about 344.1378599464.

The spelling of 40756545 in words is "forty million, seven hundred fifty-six thousand, five hundred forty-five".