1385598998 has 8 divisors (see below), whose sum is σ = 2375312592. Its totient is φ = 593828136.

The previous prime is 1385598967. The next prime is 1385599001. The reversal of 1385598998 is 8998955831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49485665 + ... + 49485692.

It is an arithmetic number, because the mean of its divisors is an integer number (296914074).

Almost surely, 2^1385598998 is an apocalyptic number.

1385598998 is a deficient number, since it is larger than the sum of its proper divisors (989713594).

1385598998 is an equidigital number, since it uses as much as digits as its factorization.

1385598998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98971366.

The product of its digits is 27993600, while the sum is 65.

The square root of 1385598998 is about 37223.6349380337. The cubic root of 1385598998 is about 1114.8399424375.

The spelling of 1385598998 in words is "one billion, three hundred eighty-five million, five hundred ninety-eight thousand, nine hundred ninety-eight".