426344690 has 8 divisors (see below), whose sum is σ = 767420460. Its totient is φ = 170537872.

The previous prime is 426344687. The next prime is 426344693. The reversal of 426344690 is 96443624.

It is an interprime number because it is at equal distance from previous prime (426344687) and next prime (426344693).

It can be written as a sum of positive squares in 2 ways, for example, as 357172201 + 69172489 = 18899^2 + 8317^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×426344690² = 363539589382392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (426344693) 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 3 ways as a sum of consecutive naturals, for example, 21317225 + ... + 21317244.

Almost surely, 2^426344690 is an apocalyptic number.

426344690 is a deficient number, since it is larger than the sum of its proper divisors (341075770).

426344690 is a wasteful number, since it uses less digits than its factorization.

426344690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42634476.

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 426344690 is about 20648.1158946767. The cubic root of 426344690 is about 752.6394056726.

The spelling of 426344690 in words is "four hundred twenty-six million, three hundred forty-four thousand, six hundred ninety".