195702640 has 160 divisors (see below), whose sum is σ = 561285504. Its totient is φ = 61931520.

The previous prime is 195702631. The next prime is 195702677. The reversal of 195702640 is 46207591.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 195702596 and 195702605.

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, 580552 + ... + 580888.

Almost surely, 2^195702640 is an apocalyptic number.

195702640 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 195702640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280642752).

195702640 is an abundant number, since it is smaller than the sum of its proper divisors (365582864).

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

195702640 is a wasteful number, since it uses less digits than its factorization.

195702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 195702640 is about 13989.3759689273. The cubic root of 195702640 is about 580.5846660803.

The spelling of 195702640 in words is "one hundred ninety-five million, seven hundred two thousand, six hundred forty".