407866545 has 12 divisors (see below), whose sum is σ = 706968756. Its totient is φ = 217528800.

The previous prime is 407866541. The next prime is 407866561. The reversal of 407866545 is 545668704.

407866545 is a `hidden beast` number, since 40 + 7 + 8 + 66 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 252714609 + 155151936 = 15897^2 + 12456^2 .

It is not a de Polignac number, because 407866545 - 2² = 407866541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 9063701 = 407866545 / (4 + 0 + 7 + 8 + 6 + 6 + 5 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 407866545.

It is not an unprimeable number, because it can be changed into a prime (407866541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4531806 + ... + 4531895.

It is an arithmetic number, because the mean of its divisors is an integer number (58914063).

Almost surely, 2^407866545 is an apocalyptic number.

407866545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

407866545 is a deficient number, since it is larger than the sum of its proper divisors (299102211).

407866545 is a wasteful number, since it uses less digits than its factorization.

407866545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9063712 (or 9063709 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The square root of 407866545 is about 20195.7061030309. The cubic root of 407866545 is about 741.6050776334.

The spelling of 407866545 in words is "four hundred seven million, eight hundred sixty-six thousand, five hundred forty-five".