196931520 has 224 divisors, whose sum is σ = 725667840. Its totient is φ = 50181120.

The previous prime is 196931509. The next prime is 196931531. The reversal of 196931520 is 25139691.

It is an interprime number because it is at equal distance from previous prime (196931509) and next prime (196931531).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198225 + ... + 199215.

Almost surely, 2^196931520 is an apocalyptic number.

196931520 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 196931520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362833920).

196931520 is an abundant number, since it is smaller than the sum of its proper divisors (528736320).

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

196931520 is a wasteful number, since it uses less digits than its factorization.

196931520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1024 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 196931520 is about 14033.2291365886. The cubic root of 196931520 is about 581.7973574460.

It can be divided in two parts, 1969 and 31520, that added together give a square (33489 = 183²).

The spelling of 196931520 in words is "one hundred ninety-six million, nine hundred thirty-one thousand, five hundred twenty".