509722994 has 16 divisors (see below), whose sum is σ = 877992480. Its totient is φ = 219497760.

The previous prime is 509722991. The next prime is 509723047. The reversal of 509722994 is 499227905.

It is a super-2 number, since 2×509722994² = 519635061224648072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (509722991) 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, 609299 + ... + 610134.

It is an arithmetic number, because the mean of its divisors is an integer number (54874530).

Almost surely, 2^509722994 is an apocalyptic number.

509722994 is a deficient number, since it is larger than the sum of its proper divisors (368269486).

509722994 is a wasteful number, since it uses less digits than its factorization.

509722994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219465.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 509722994 is about 22577.0457323362. The cubic root of 509722994 is about 798.8122969494.

The spelling of 509722994 in words is "five hundred nine million, seven hundred twenty-two thousand, nine hundred ninety-four".