1082698638 has 64 divisors (see below), whose sum is σ = 2526266880. Its totient is φ = 302947200.

The previous prime is 1082698621. The next prime is 1082698651. The reversal of 1082698638 is 8368962801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 688393 + ... + 689963.

It is an arithmetic number, because the mean of its divisors is an integer number (39472920).

Almost surely, 2^1082698638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1082698638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1263133440).

1082698638 is an abundant number, since it is smaller than the sum of its proper divisors (1443568242).

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

1082698638 is a wasteful number, since it uses less digits than its factorization.

1082698638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913.

The product of its (nonzero) digits is 995328, while the sum is 51.

The square root of 1082698638 is about 32904.3863033487. The cubic root of 1082698638 is about 1026.8394139005.

The spelling of 1082698638 in words is "one billion, eighty-two million, six hundred ninety-eight thousand, six hundred thirty-eight".