1098464643 has 24 divisors (see below), whose sum is σ = 1614109536. Its totient is φ = 719712000.

The previous prime is 1098464629. The next prime is 1098464657. The reversal of 1098464643 is 3464648901.

1098464643 is a `hidden beast` number, since 109 + 84 + 6 + 464 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1098464629) and next prime (1098464657).

It is not a de Polignac number, because 1098464643 - 2⁸ = 1098464387 is a prime.

It is a super-2 number, since 2×1098464643² = 2413249143842234898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1098464243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212793 + ... + 217893.

It is an arithmetic number, because the mean of its divisors is an integer number (67254564).

Almost surely, 2^1098464643 is an apocalyptic number.

1098464643 is a deficient number, since it is larger than the sum of its proper divisors (515644893).

1098464643 is a wasteful number, since it uses less digits than its factorization.

1098464643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515 (or 5512 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 1098464643 is about 33143.0934434310. The cubic root of 1098464643 is about 1031.7996134951.

The spelling of 1098464643 in words is "one billion, ninety-eight million, four hundred sixty-four thousand, six hundred forty-three".