1420143668 has 12 divisors (see below), whose sum is σ = 2485523040. Its totient is φ = 709994232.

The previous prime is 1420143617. The next prime is 1420143689. The reversal of 1420143668 is 8663410241.

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, 47105 + ... + 71127.

It is an arithmetic number, because the mean of its divisors is an integer number (207126920).

Almost surely, 2^1420143668 is an apocalyptic number.

It is an amenable number.

1420143668 is a deficient number, since it is larger than the sum of its proper divisors (1065379372).

1420143668 is a wasteful number, since it uses less digits than its factorization.

1420143668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38806 (or 38804 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 1420143668 is about 37684.7935910494. The cubic root of 1420143668 is about 1124.0287697959.

The spelling of 1420143668 in words is "one billion, four hundred twenty million, one hundred forty-three thousand, six hundred sixty-eight".