1098864004 has 36 divisors (see below), whose sum is σ = 2273669580. Its totient is φ = 463216320.

The previous prime is 1098863971. The next prime is 1098864007. The reversal of 1098864004 is 4004688901.

It can be written as a sum of positive squares in 2 ways, for example, as 612661504 + 486202500 = 24752^2 + 22050^2 .

It is not an unprimeable number, because it can be changed into a prime (1098864007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33999 + ... + 57910.

Almost surely, 2^1098864004 is an apocalyptic number.

1098864004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1098864004 is an abundant number, since it is smaller than the sum of its proper divisors (1174805576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1098864004 is a wasteful number, since it uses less digits than its factorization.

1098864004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91988 (or 91979 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1098864004 is about 33149.1176956492. The cubic root of 1098864004 is about 1031.9246397007.

The spelling of 1098864004 in words is "one billion, ninety-eight million, eight hundred sixty-four thousand, four".