1420599999 has 64 divisors (see below), whose sum is σ = 2478694400. Its totient is φ = 702732672.

The previous prime is 1420599979. The next prime is 1420600007. The reversal of 1420599999 is 9999950241.

It is not a de Polignac number, because 1420599999 - 2⁸ = 1420599743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

1420599999 is a modest number, since divided by 99999 gives 14205 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420599959) 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 63 ways as a sum of consecutive naturals, for example, 532932 + ... + 535590.

It is an arithmetic number, because the mean of its divisors is an integer number (38729600).

Almost surely, 2^1420599999 is an apocalyptic number.

1420599999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1420599999 is a deficient number, since it is larger than the sum of its proper divisors (1058094401).

1420599999 is a wasteful number, since it uses less digits than its factorization.

1420599999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2804.

The product of its (nonzero) digits is 2361960, while the sum is 57.

The square root of 1420599999 is about 37690.8476821628. The cubic root of 1420599999 is about 1124.1491506312.

The spelling of 1420599999 in words is "one billion, four hundred twenty million, five hundred ninety-nine thousand, nine hundred ninety-nine".