406420365 has 32 divisors (see below), whose sum is σ = 703987200. Its totient is φ = 199028736.

The previous prime is 406420361. The next prime is 406420381. The reversal of 406420365 is 563024604.

It is not a de Polignac number, because 406420365 - 2² = 406420361 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406420361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32236 + ... + 43034.

It is an arithmetic number, because the mean of its divisors is an integer number (21999600).

Almost surely, 2^406420365 is an apocalyptic number.

It is an amenable number.

406420365 is a deficient number, since it is larger than the sum of its proper divisors (297566835).

406420365 is a wasteful number, since it uses less digits than its factorization.

406420365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11013.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 406420365 is about 20159.8701632724. The cubic root of 406420365 is about 740.7275319958.

Adding to 406420365 its reverse (563024604), we get a palindrome (969444969).

The spelling of 406420365 in words is "four hundred six million, four hundred twenty thousand, three hundred sixty-five".