1420380188 has 12 divisors (see below), whose sum is σ = 2616489960. Its totient is φ = 672811632.

The previous prime is 1420380173. The next prime is 1420380191. The reversal of 1420380188 is 8810830241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9344531 + ... + 9344682.

It is an arithmetic number, because the mean of its divisors is an integer number (218040830).

Almost surely, 2^1420380188 is an apocalyptic number.

It is an amenable number.

1420380188 is a deficient number, since it is larger than the sum of its proper divisors (1196109772).

1420380188 is a wasteful number, since it uses less digits than its factorization.

1420380188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18689236 (or 18689234 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 1420380188 is about 37687.9315962020. The cubic root of 1420380188 is about 1124.0911673624.

The spelling of 1420380188 in words is "one billion, four hundred twenty million, three hundred eighty thousand, one hundred eighty-eight".