196720920 has 256 divisors, whose sum is σ = 741312000. Its totient is φ = 45964800.

The previous prime is 196720877. The next prime is 196720933. The reversal of 196720920 is 29027691.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 344235 + ... + 344805.

It is an arithmetic number, because the mean of its divisors is an integer number (2895750).

Almost surely, 2^196720920 is an apocalyptic number.

196720920 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 196720920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370656000).

196720920 is an abundant number, since it is smaller than the sum of its proper divisors (544591080).

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

196720920 is a wasteful number, since it uses less digits than its factorization.

196720920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 196720920 is about 14025.7235107498. The cubic root of 196720920 is about 581.5898906975.

The spelling of 196720920 in words is "one hundred ninety-six million, seven hundred twenty thousand, nine hundred twenty".