507040426 has 4 divisors (see below), whose sum is σ = 760560642. Its totient is φ = 253520212.

The previous prime is 507040411. The next prime is 507040439. The reversal of 507040426 is 624040705.

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., 447364801 + 59675625 = 21151^2 + 7725^2 .

It is a super-2 number, since 2×507040426² = 514179987196522952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 507040394 and 507040403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126760105 + ... + 126760108.

Almost surely, 2^507040426 is an apocalyptic number.

507040426 is a deficient number, since it is larger than the sum of its proper divisors (253520216).

507040426 is a wasteful number, since it uses less digits than its factorization.

507040426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253520215.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 507040426 is about 22517.5581713471. The cubic root of 507040426 is about 797.4085027840.

The spelling of 507040426 in words is "five hundred seven million, forty thousand, four hundred twenty-six".