1098449438 has 8 divisors (see below), whose sum is σ = 1648482888. Its totient is φ = 548955144.

The previous prime is 1098449411. The next prime is 1098449453. The reversal of 1098449438 is 8349448901.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 129656 + ... + 137867.

It is an arithmetic number, because the mean of its divisors is an integer number (206060361).

Almost surely, 2^1098449438 is an apocalyptic number.

1098449438 is a deficient number, since it is larger than the sum of its proper divisors (550033450).

1098449438 is a wasteful number, since it uses less digits than its factorization.

1098449438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269578.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 1098449438 is about 33142.8640584968. The cubic root of 1098449438 is about 1031.7948527333.

The spelling of 1098449438 in words is "one billion, ninety-eight million, four hundred forty-nine thousand, four hundred thirty-eight".