426432437 has 8 divisors (see below), whose sum is σ = 463720536. Its totient is φ = 390500352.

The previous prime is 426432361. The next prime is 426432451. The reversal of 426432437 is 734234624.

It can be written as a sum of positive squares in 4 ways, for example, as 170720356 + 255712081 = 13066^2 + 15991^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 426432437 - 2²² = 422238133 is a prime.

It is a super-3 number, since 3×426432437³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 426432397 and 426432406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426431437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338348 + ... + 339605.

It is an arithmetic number, because the mean of its divisors is an integer number (57965067).

Almost surely, 2^426432437 is an apocalyptic number.

It is an amenable number.

426432437 is a deficient number, since it is larger than the sum of its proper divisors (37288099).

426432437 is a wasteful number, since it uses less digits than its factorization.

426432437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678007.

The product of its digits is 96768, while the sum is 35.

The square root of 426432437 is about 20650.2406039252. The cubic root of 426432437 is about 752.6910362908.

The spelling of 426432437 in words is "four hundred twenty-six million, four hundred thirty-two thousand, four hundred thirty-seven".