1604029698 has 48 divisors (see below), whose sum is σ = 3595213440. Its totient is φ = 516453408.

The previous prime is 1604029681. The next prime is 1604029711. The reversal of 1604029698 is 8969204061.

It is a happy number.

1604029698 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1604029698² = 5145822544131942408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83911 + ... + 101237.

It is an arithmetic number, because the mean of its divisors is an integer number (74900280).

Almost surely, 2^1604029698 is an apocalyptic number.

1604029698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604029698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797606720).

1604029698 is an abundant number, since it is smaller than the sum of its proper divisors (1991183742).

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

1604029698 is a wasteful number, since it uses less digits than its factorization.

1604029698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17511 (or 17508 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1604029698 is about 40050.3395491224. The cubic root of 1604029698 is about 1170.5881811399.

The spelling of 1604029698 in words is "one billion, six hundred four million, twenty-nine thousand, six hundred ninety-eight".