1098620464 has 20 divisors (see below), whose sum is σ = 2168740656. Its totient is φ = 538945472.

The previous prime is 1098620447. The next prime is 1098620477. The reversal of 1098620464 is 4640268901.

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, 646924 + ... + 648619.

Almost surely, 2^1098620464 is an apocalyptic number.

It is an amenable number.

1098620464 is a deficient number, since it is larger than the sum of its proper divisors (1070120192).

1098620464 is a wasteful number, since it uses less digits than its factorization.

1098620464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295604 (or 1295598 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1098620464 is about 33145.4440911568. Note that the first 3 decimals coincide. The cubic root of 1098620464 is about 1031.8483993002.

The spelling of 1098620464 in words is "one billion, ninety-eight million, six hundred twenty thousand, four hundred sixty-four".