405264545 has 24 divisors (see below), whose sum is σ = 571581864. Its totient is φ = 275014656.

The previous prime is 405264523. The next prime is 405264557. The reversal of 405264545 is 545462504.

It can be written as a sum of positive squares in 4 ways, for example, as 20830096 + 384434449 = 4564^2 + 19607^2 .

It is not a de Polignac number, because 405264545 - 2⁶ = 405264481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 15239 + ... + 32291.

It is an arithmetic number, because the mean of its divisors is an integer number (23815911).

Almost surely, 2^405264545 is an apocalyptic number.

It is an amenable number.

405264545 is a deficient number, since it is larger than the sum of its proper divisors (166317319).

405264545 is a wasteful number, since it uses less digits than its factorization.

405264545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17169 (or 17162 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 405264545 is about 20131.1833979029. The cubic root of 405264545 is about 740.0246796006.

The spelling of 405264545 in words is "four hundred five million, two hundred sixty-four thousand, five hundred forty-five".