1061998504 has 64 divisors (see below), whose sum is σ = 2380435200. Its totient is φ = 434294784.

The previous prime is 1061998499. The next prime is 1061998507. The reversal of 1061998504 is 4058991601.

It is a super-2 number, since 2×1061998504² = 2255681644996476032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061998507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742462 + ... + 743890.

It is an arithmetic number, because the mean of its divisors is an integer number (37194300).

Almost surely, 2^1061998504 is an apocalyptic number.

1061998504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061998504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1190217600).

1061998504 is an abundant number, since it is smaller than the sum of its proper divisors (1318436696).

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

1061998504 is a wasteful number, since it uses less digits than its factorization.

1061998504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 1061998504 is about 32588.3185205988. The cubic root of 1061998504 is about 1020.2532063939.

The spelling of 1061998504 in words is "one billion, sixty-one million, nine hundred ninety-eight thousand, five hundred four".