401245215 has 32 divisors (see below), whose sum is σ = 734476800. Its totient is φ = 183233664.

The previous prime is 401245213. The next prime is 401245217. The reversal of 401245215 is 512542104.

It is an interprime number because it is at equal distance from previous prime (401245213) and next prime (401245217).

It is not a de Polignac number, because 401245215 - 2¹ = 401245213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401245213) 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, 161412 + ... + 163878.

It is an arithmetic number, because the mean of its divisors is an integer number (22952400).

Almost surely, 2^401245215 is an apocalyptic number.

401245215 is a deficient number, since it is larger than the sum of its proper divisors (333231585).

401245215 is a wasteful number, since it uses less digits than its factorization.

401245215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 401245215 is about 20031.1061851312. The cubic root of 401245215 is about 737.5700762676.

Adding to 401245215 its reverse (512542104), we get a palindrome (913787319).

The spelling of 401245215 in words is "four hundred one million, two hundred forty-five thousand, two hundred fifteen".