426198402 has 64 divisors (see below), whose sum is σ = 1087395840. Its totient is φ = 121210128.

The previous prime is 426198401. The next prime is 426198419. The reversal of 426198402 is 204891624.

426198402 is a `hidden beast` number, since 426 + 198 + 40 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (426198401) 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 31 ways as a sum of consecutive naturals, for example, 83323 + ... + 88289.

It is an arithmetic number, because the mean of its divisors is an integer number (16990560).

Almost surely, 2^426198402 is an apocalyptic number.

426198402 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 426198402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543697920).

426198402 is an abundant number, since it is smaller than the sum of its proper divisors (661197438).

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

426198402 is a wasteful number, since it uses less digits than its factorization.

426198402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5212 (or 5206 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 426198402 is about 20644.5731852223. The cubic root of 426198402 is about 752.5533135886.

The spelling of 426198402 in words is "four hundred twenty-six million, one hundred ninety-eight thousand, four hundred two".