414640645 has 4 divisors (see below), whose sum is σ = 497568780. Its totient is φ = 331712512.

The previous prime is 414640643. The next prime is 414640661. The reversal of 414640645 is 546046414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49028004 + 365612641 = 7002^2 + 19121^2 .

It is a cyclic number.

It is not a de Polignac number, because 414640645 - 2¹ = 414640643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 414640645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (414640643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41464060 + ... + 41464069.

It is an arithmetic number, because the mean of its divisors is an integer number (124392195).

Almost surely, 2^414640645 is an apocalyptic number.

It is an amenable number.

414640645 is a deficient number, since it is larger than the sum of its proper divisors (82928135).

414640645 is an equidigital number, since it uses as much as digits as its factorization.

414640645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82928134.

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 414640645 is about 20362.7268557038. The cubic root of 414640645 is about 745.6882338818.

The spelling of 414640645 in words is "four hundred fourteen million, six hundred forty thousand, six hundred forty-five".