1598820338 has 32 divisors (see below), whose sum is σ = 2518483968. Its totient is φ = 760435200.

The previous prime is 1598820337. The next prime is 1598820343. The reversal of 1598820338 is 8330288951.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 1598820292 and 1598820301.

It is not an unprimeable number, because it can be changed into a prime (1598820331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1298183 + ... + 1299413.

It is an arithmetic number, because the mean of its divisors is an integer number (78702624).

Almost surely, 2^1598820338 is an apocalyptic number.

1598820338 is a deficient number, since it is larger than the sum of its proper divisors (919663630).

1598820338 is a wasteful number, since it uses less digits than its factorization.

1598820338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 1598820338 is about 39985.2515060241. The cubic root of 1598820338 is about 1169.3195785615.

The spelling of 1598820338 in words is "one billion, five hundred ninety-eight million, eight hundred twenty thousand, three hundred thirty-eight".