171426402 has 192 divisors, whose sum is σ = 486570240. Its totient is φ = 44416512.

The previous prime is 171426397. The next prime is 171426407. The reversal of 171426402 is 204624171.

171426402 is a `hidden beast` number, since 1 + 7 + 14 + 2 + 640 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (171426397) and next prime (171426407).

It is a super-2 number, since 2×171426402² = 58774022605331208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (171426407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1664283 + ... + 1664385.

It is an arithmetic number, because the mean of its divisors is an integer number (2534220).

Almost surely, 2^171426402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171426402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243285120).

171426402 is an abundant number, since it is smaller than the sum of its proper divisors (315143838).

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

171426402 is a wasteful number, since it uses less digits than its factorization.

171426402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 171426402 is about 13092.9905674754. The cubic root of 171426402 is about 555.5108809380.

The spelling of 171426402 in words is "one hundred seventy-one million, four hundred twenty-six thousand, four hundred two".