1421377069 has 16 divisors (see below), whose sum is σ = 1696204800. Its totient is φ = 1164564720.

The previous prime is 1421377057. The next prime is 1421377073. The reversal of 1421377069 is 9607731241.

It is a cyclic number.

It is not a de Polignac number, because 1421377069 - 2⁹ = 1421376557 is a prime.

It is a super-2 number, since 2×1421377069² = 4040625544558061522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421377039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432904 + ... + 436174.

It is an arithmetic number, because the mean of its divisors is an integer number (106012800).

Almost surely, 2^1421377069 is an apocalyptic number.

It is an amenable number.

1421377069 is a deficient number, since it is larger than the sum of its proper divisors (274827731).

1421377069 is a wasteful number, since it uses less digits than its factorization.

1421377069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 1421377069 is about 37701.1547435884. The cubic root of 1421377069 is about 1124.3540836063.

The spelling of 1421377069 in words is "one billion, four hundred twenty-one million, three hundred seventy-seven thousand, sixty-nine".