1420197192 has 128 divisors (see below), whose sum is σ = 4131993600. Its totient is φ = 451116864.

The previous prime is 1420197113. The next prime is 1420197227. The reversal of 1420197192 is 2917910241.

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

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, 2419123 + ... + 2419709.

It is an arithmetic number, because the mean of its divisors is an integer number (32281200).

Almost surely, 2^1420197192 is an apocalyptic number.

1420197192 is a gapful number since it is divisible by the number (12) 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 1420197192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2065996800).

1420197192 is an abundant number, since it is smaller than the sum of its proper divisors (2711796408).

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

1420197192 is a wasteful number, since it uses less digits than its factorization.

1420197192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1420197192 is about 37685.5037381750. The cubic root of 1420197192 is about 1124.0428908461.

The spelling of 1420197192 in words is "one billion, four hundred twenty million, one hundred ninety-seven thousand, one hundred ninety-two".