1600699420 has 24 divisors (see below), whose sum is σ = 3367400400. Its totient is φ = 639149952.

The previous prime is 1600699417. The next prime is 1600699423. The reversal of 1600699420 is 249960061.

It is an interprime number because it is at equal distance from previous prime (1600699417) and next prime (1600699423).

It is a self number, because there is not a number n which added to its sum of digits gives 1600699420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600699423) 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 7 ways as a sum of consecutive naturals, for example, 58950 + ... + 81709.

It is an arithmetic number, because the mean of its divisors is an integer number (140308350).

Almost surely, 2^1600699420 is an apocalyptic number.

1600699420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1600699420 is an abundant number, since it is smaller than the sum of its proper divisors (1766700980).

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

1600699420 is a wasteful number, since it uses less digits than its factorization.

1600699420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141237 (or 141235 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1600699420 is about 40008.7417947628. The cubic root of 1600699420 is about 1169.7774968318. Note that the first 3 decimals are identical.

The spelling of 1600699420 in words is "one billion, six hundred million, six hundred ninety-nine thousand, four hundred twenty".