1421965164 has 48 divisors (see below), whose sum is σ = 3429149696. Its totient is φ = 458136000.

The previous prime is 1421965123. The next prime is 1421965201. The reversal of 1421965164 is 4615691241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389154 + ... + 392790.

Almost surely, 2^1421965164 is an apocalyptic number.

It is an amenable number.

1421965164 is an abundant number, since it is smaller than the sum of its proper divisors (2007184532).

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

1421965164 is a wasteful number, since it uses less digits than its factorization.

1421965164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726 (or 4724 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 1421965164 is about 37708.9533665415. The cubic root of 1421965164 is about 1124.5091294549.

The spelling of 1421965164 in words is "one billion, four hundred twenty-one million, nine hundred sixty-five thousand, one hundred sixty-four".