1597421016 has 48 divisors (see below), whose sum is σ = 4338673560. Its totient is φ = 530956800.

The previous prime is 1597421003. The next prime is 1597421053. The reversal of 1597421016 is 6101247951.

1597421016 is a `hidden beast` number, since 1 + 597 + 42 + 10 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6010 + ... + 56841.

Almost surely, 2^1597421016 is an apocalyptic number.

It is an amenable number.

1597421016 is an abundant number, since it is smaller than the sum of its proper divisors (2741252544).

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

1597421016 is a wasteful number, since it uses less digits than its factorization.

1597421016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63216 (or 63209 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1597421016 is about 39967.7496989760. The cubic root of 1597421016 is about 1168.9783410949.

Adding to 1597421016 its reverse (6101247951), we get a palindrome (7698668967).

The spelling of 1597421016 in words is "one billion, five hundred ninety-seven million, four hundred twenty-one thousand, sixteen".