508740994 has 4 divisors (see below), whose sum is σ = 763111494. Its totient is φ = 254370496.

The previous prime is 508740977. The next prime is 508741003. The reversal of 508740994 is 499047805.

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., 457403769 + 51337225 = 21387^2 + 7165^2 .

It is a super-2 number, since 2×508740994² = 517634797952216072, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 127185247 + ... + 127185250.

Almost surely, 2^508740994 is an apocalyptic number.

508740994 is a deficient number, since it is larger than the sum of its proper divisors (254370500).

508740994 is a wasteful number, since it uses less digits than its factorization.

508740994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254370499.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 508740994 is about 22555.2874953967. The cubic root of 508740994 is about 798.2989867977.

The spelling of 508740994 in words is "five hundred eight million, seven hundred forty thousand, nine hundred ninety-four".