401210405 has 16 divisors (see below), whose sum is σ = 489815424. Its totient is φ = 315416640.

The previous prime is 401210393. The next prime is 401210417. The reversal of 401210405 is 504012104.

It is an interprime number because it is at equal distance from previous prime (401210393) and next prime (401210417).

It is not a de Polignac number, because 401210405 - 2²⁶ = 334101541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167315 + ... + 169695.

It is an arithmetic number, because the mean of its divisors is an integer number (30613464).

Almost surely, 2^401210405 is an apocalyptic number.

It is an amenable number.

401210405 is a deficient number, since it is larger than the sum of its proper divisors (88605019).

401210405 is a wasteful number, since it uses less digits than its factorization.

401210405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 401210405 is about 20030.2372676911. The cubic root of 401210405 is about 737.5487463710.

Adding to 401210405 its reverse (504012104), we get a palindrome (905222509).

The spelling of 401210405 in words is "four hundred one million, two hundred ten thousand, four hundred five".