1098521374 has 8 divisors (see below), whose sum is σ = 1670354640. Its totient is φ = 541736496.

The previous prime is 1098521357. The next prime is 1098521401. The reversal of 1098521374 is 4731258901.

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, 3761914 + ... + 3762205.

It is an arithmetic number, because the mean of its divisors is an integer number (208794330).

Almost surely, 2^1098521374 is an apocalyptic number.

1098521374 is a deficient number, since it is larger than the sum of its proper divisors (571833266).

1098521374 is an equidigital number, since it uses as much as digits as its factorization.

1098521374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524194.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 1098521374 is about 33143.9492818825. The cubic root of 1098521374 is about 1031.8173758681.

The spelling of 1098521374 in words is "one billion, ninety-eight million, five hundred twenty-one thousand, three hundred seventy-four".