426161023 has 4 divisors (see below), whose sum is σ = 427929568. Its totient is φ = 424392480.

The previous prime is 426160993. The next prime is 426161027. The reversal of 426161023 is 320161624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426161023 is a prime.

It is a super-2 number, since 2×426161023² = 363226435048813058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426161027) 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 3 ways as a sum of consecutive naturals, for example, 883911 + ... + 884392.

It is an arithmetic number, because the mean of its divisors is an integer number (106982392).

Almost surely, 2^426161023 is an apocalyptic number.

426161023 is a deficient number, since it is larger than the sum of its proper divisors (1768545).

426161023 is a wasteful number, since it uses less digits than its factorization.

426161023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768544.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 426161023 is about 20643.6678669271. The cubic root of 426161023 is about 752.5313124794.

The spelling of 426161023 in words is "four hundred twenty-six million, one hundred sixty-one thousand, twenty-three".