401001402 has 64 divisors (see below), whose sum is σ = 849429504. Its totient is φ = 126053760.

The previous prime is 401001401. The next prime is 401001407. The reversal of 401001402 is 204100104.

It is a super-3 number, since 3×401001402³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (401001401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1766413 + ... + 1766639.

It is an arithmetic number, because the mean of its divisors is an integer number (13272336).

Almost surely, 2^401001402 is an apocalyptic number.

401001402 is an abundant number, since it is smaller than the sum of its proper divisors (448428102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401001402 is a wasteful number, since it uses less digits than its factorization.

401001402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

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

The square root of 401001402 is about 20025.0194007397. The cubic root of 401001402 is about 737.4206534189.

Adding to 401001402 its reverse (204100104), we get a palindrome (605101506).

The spelling of 401001402 in words is "four hundred one million, one thousand, four hundred two".