40266545 has 32 divisors (see below), whose sum is σ = 55420416. Its totient is φ = 27820800.

The previous prime is 40266509. The next prime is 40266563. The reversal of 40266545 is 54566204.

40266545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40266545 - 2¹² = 40262449 is a prime.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 95435 + ... + 95855.

It is an arithmetic number, because the mean of its divisors is an integer number (1731888).

Almost surely, 2^40266545 is an apocalyptic number.

It is an amenable number.

40266545 is a deficient number, since it is larger than the sum of its proper divisors (15153871).

40266545 is a wasteful number, since it uses less digits than its factorization.

40266545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 40266545 is about 6345.5925649225. The cubic root of 40266545 is about 342.7531507943.

It can be divided in two parts, 4026 and 6545, that multiplied together give a triangular number (26350170 = T₇₂₅₉).

The spelling of 40266545 in words is "forty million, two hundred sixty-six thousand, five hundred forty-five".