402013135426 has 16 divisors (see below), whose sum is σ = 689973326784. Its totient is φ = 172089355824.

The previous prime is 402013135399. The next prime is 402013135439. The reversal of 402013135426 is 624531310204.

It is a super-2 number, since 2×402013135426² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16819960 + ... + 16843843.

It is an arithmetic number, because the mean of its divisors is an integer number (43123332924).

Almost surely, 2^402013135426 is an apocalyptic number.

402013135426 is a deficient number, since it is larger than the sum of its proper divisors (287960191358).

402013135426 is a wasteful number, since it uses less digits than its factorization.

402013135426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33664665.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 402013135426 in words is "four hundred two billion, thirteen million, one hundred thirty-five thousand, four hundred twenty-six".