193270420 has 48 divisors (see below), whose sum is σ = 470227968. Its totient is φ = 65352960.

The previous prime is 193270381. The next prime is 193270447. The reversal of 193270420 is 24072391.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765 + ... + 19675.

It is an arithmetic number, because the mean of its divisors is an integer number (9796416).

Almost surely, 2^193270420 is an apocalyptic number.

193270420 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 193270420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235113984).

193270420 is an abundant number, since it is smaller than the sum of its proper divisors (276957548).

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

193270420 is a wasteful number, since it uses less digits than its factorization.

193270420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19000 (or 18998 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 193270420 is about 13902.1732114084. The cubic root of 193270420 is about 578.1694366428.

The spelling of 193270420 in words is "one hundred ninety-three million, two hundred seventy thousand, four hundred twenty".