1098642048 has 128 divisors (see below), whose sum is σ = 3365608320. Its totient is φ = 311033856.

The previous prime is 1098642031. The next prime is 1098642053. The reversal of 1098642048 is 8402468901.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301936 + ... + 305552.

It is an arithmetic number, because the mean of its divisors is an integer number (26293815).

Almost surely, 2^1098642048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1098642048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682804160).

1098642048 is an abundant number, since it is smaller than the sum of its proper divisors (2266966272).

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

1098642048 is a wasteful number, since it uses less digits than its factorization.

1098642048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1098642048 is about 33145.7696848331. The cubic root of 1098642048 is about 1031.8551566444.

The spelling of 1098642048 in words is "one billion, ninety-eight million, six hundred forty-two thousand, forty-eight".