402010401 has 16 divisors (see below), whose sum is σ = 582966720. Its totient is φ = 244939200.

The previous prime is 402010391. The next prime is 402010403. The reversal of 402010401 is 104010204.

It is not a de Polignac number, because 402010401 - 2⁵ = 402010369 is a prime.

It is a super-2 number, since 2×402010401² = 323224725024361602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402010403) 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, 47091 + ... + 54968.

It is an arithmetic number, because the mean of its divisors is an integer number (36435420).

Almost surely, 2^402010401 is an apocalyptic number.

It is an amenable number.

402010401 is a deficient number, since it is larger than the sum of its proper divisors (180956319).

402010401 is a wasteful number, since it uses less digits than its factorization.

402010401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102176.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 402010401 is about 20050.1970314508. The cubic root of 402010401 is about 738.0386342243.

Adding to 402010401 its reverse (104010204), we get a palindrome (506020605).

The spelling of 402010401 in words is "four hundred two million, ten thousand, four hundred one".