1420089979 has 16 divisors (see below), whose sum is σ = 1777579776. Its totient is φ = 1102140000.

The previous prime is 1420089977. The next prime is 1420090051. The reversal of 1420089979 is 9799800241.

It is a cyclic number.

It is not a de Polignac number, because 1420089979 - 2¹ = 1420089977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420089971) 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, 17412 + ... + 56065.

It is an arithmetic number, because the mean of its divisors is an integer number (111098736).

Almost surely, 2^1420089979 is an apocalyptic number.

1420089979 is a deficient number, since it is larger than the sum of its proper divisors (357489797).

1420089979 is a wasteful number, since it uses less digits than its factorization.

1420089979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73746.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1420089979 is about 37684.0812412881. The cubic root of 1420089979 is about 1124.0146048579.

The spelling of 1420089979 in words is "one billion, four hundred twenty million, eighty-nine thousand, nine hundred seventy-nine".