1798652520 has 384 divisors, whose sum is σ = 7087046400. Its totient is φ = 397343232.

The previous prime is 1798652507. The next prime is 1798652533. The reversal of 1798652520 is 252568971.

1798652520 is a `hidden beast` number, since 1 + 79 + 8 + 6 + 52 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (1798652507) and next prime (1798652533).

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26845527 + ... + 26845593.

It is an arithmetic number, because the mean of its divisors is an integer number (18455850).

Almost surely, 2^1798652520 is an apocalyptic number.

1798652520 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 1798652520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3543523200).

1798652520 is an abundant number, since it is smaller than the sum of its proper divisors (5288393880).

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

1798652520 is a wasteful number, since it uses less digits than its factorization.

1798652520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 1798652520 is about 42410.5236940078. The cubic root of 1798652520 is about 1216.1367809116.

The spelling of 1798652520 in words is "one billion, seven hundred ninety-eight million, six hundred fifty-two thousand, five hundred twenty".