1678974652 has 12 divisors (see below), whose sum is σ = 2942123296. Its totient is φ = 838368000.

The previous prime is 1678974599. The next prime is 1678974667. The reversal of 1678974652 is 2564798761.

It is a super-2 number, since 2×1678974652² = 5637911764117042208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1678974593 and 1678974602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276453 + ... + 282460.

Almost surely, 2^1678974652 is an apocalyptic number.

It is an amenable number.

1678974652 is a deficient number, since it is larger than the sum of its proper divisors (1263148644).

1678974652 is a wasteful number, since it uses less digits than its factorization.

1678974652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559668 (or 559666 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 1678974652 is about 40975.2931899212. The cubic root of 1678974652 is about 1188.5424925843.

The spelling of 1678974652 in words is "one billion, six hundred seventy-eight million, nine hundred seventy-four thousand, six hundred fifty-two".