1420009918 has 4 divisors (see below), whose sum is σ = 2130014880. Its totient is φ = 710004958.

The previous prime is 1420009909. The next prime is 1420009967. The reversal of 1420009918 is 8199000241.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355002478 + ... + 355002481.

It is an arithmetic number, because the mean of its divisors is an integer number (532503720).

Almost surely, 2^1420009918 is an apocalyptic number.

1420009918 is a deficient number, since it is larger than the sum of its proper divisors (710004962).

1420009918 is an equidigital number, since it uses as much as digits as its factorization.

1420009918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710004961.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 1420009918 is about 37683.0189607998. The cubic root of 1420009918 is about 1123.9934814488.

The spelling of 1420009918 in words is "one billion, four hundred twenty million, nine thousand, nine hundred eighteen".