405652445 has 16 divisors (see below), whose sum is σ = 532327680. Its totient is φ = 294302400.

The previous prime is 405652433. The next prime is 405652447. The reversal of 405652445 is 544256504.

It is not a de Polignac number, because 405652445 - 2⁸ = 405652189 is a prime.

It is a super-2 number, since 2×405652445² = 329107812268956050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405652447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14396 + ... + 31914.

It is an arithmetic number, because the mean of its divisors is an integer number (33270480).

Almost surely, 2^405652445 is an apocalyptic number.

It is an amenable number.

405652445 is a deficient number, since it is larger than the sum of its proper divisors (126675235).

405652445 is a wasteful number, since it uses less digits than its factorization.

405652445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17956.

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

The square root of 405652445 is about 20140.8154005740. The cubic root of 405652445 is about 740.2607098184.

The spelling of 405652445 in words is "four hundred five million, six hundred fifty-two thousand, four hundred forty-five".