426493394 has 4 divisors (see below), whose sum is σ = 639740094. Its totient is φ = 213246696.

The previous prime is 426493387. The next prime is 426493409. The reversal of 426493394 is 493394624.

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

It can be written as a sum of positive squares in only one way, i.e., 298011169 + 128482225 = 17263^2 + 11335^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106623347 + ... + 106623350.

Almost surely, 2^426493394 is an apocalyptic number.

426493394 is a deficient number, since it is larger than the sum of its proper divisors (213246700).

426493394 is a wasteful number, since it uses less digits than its factorization.

426493394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213246699.

The product of its digits is 559872, while the sum is 44.

The square root of 426493394 is about 20651.7164904034. The cubic root of 426493394 is about 752.7268994174.

The spelling of 426493394 in words is "four hundred twenty-six million, four hundred ninety-three thousand, three hundred ninety-four".