402101205 has 16 divisors (see below), whose sum is σ = 701849664. Its totient is φ = 194958080.

The previous prime is 402101197. The next prime is 402101239. The reversal of 402101205 is 502101204.

It is not a de Polignac number, because 402101205 - 2³ = 402101197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 1218324 + ... + 1218653.

It is an arithmetic number, because the mean of its divisors is an integer number (43865604).

Almost surely, 2^402101205 is an apocalyptic number.

It is an amenable number.

402101205 is a deficient number, since it is larger than the sum of its proper divisors (299748459).

402101205 is a wasteful number, since it uses less digits than its factorization.

402101205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436996.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 402101205 is about 20052.4613202469. The cubic root of 402101205 is about 738.0941981390.

Adding to 402101205 its reverse (502101204), we get a palindrome (904202409).

Subtracting 402101205 from its reverse (502101204), we obtain a palindrome (99999999).

The spelling of 402101205 in words is "four hundred two million, one hundred one thousand, two hundred five".