1698972120 has 96 divisors (see below), whose sum is σ = 5530608720. Its totient is φ = 452325120.

The previous prime is 1698972109. The next prime is 1698972127. The reversal of 1698972120 is 212798961.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1698972127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240235 + ... + 247205.

Almost surely, 2^1698972120 is an apocalyptic number.

1698972120 is a gapful number since it is divisible by the number (10) 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 1698972120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2765304360).

1698972120 is an abundant number, since it is smaller than the sum of its proper divisors (3831636600).

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

1698972120 is a wasteful number, since it uses less digits than its factorization.

1698972120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7665 (or 7658 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1698972120 is about 41218.5894955177. The cubic root of 1698972120 is about 1193.2426027443.

The spelling of 1698972120 in words is "one billion, six hundred ninety-eight million, nine hundred seventy-two thousand, one hundred twenty".