1420643912 has 8 divisors (see below), whose sum is σ = 2663707350. Its totient is φ = 710321952.

The previous prime is 1420643893. The next prime is 1420643923. The reversal of 1420643912 is 2193460241.

It can be written as a sum of positive squares in only one way, i.e., 1389351076 + 31292836 = 37274^2 + 5594^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88790237 + ... + 88790252.

Almost surely, 2^1420643912 is an apocalyptic number.

It is an amenable number.

1420643912 is a deficient number, since it is larger than the sum of its proper divisors (1243063438).

1420643912 is a wasteful number, since it uses less digits than its factorization.

1420643912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177580495 (or 177580491 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1420643912 is about 37691.4302196136. The cubic root of 1420643912 is about 1124.1607335898.

The spelling of 1420643912 in words is "one billion, four hundred twenty million, six hundred forty-three thousand, nine hundred twelve".