1398420359 has 12 divisors (see below), whose sum is σ = 1627411104. Its totient is φ = 1198147104.

The previous prime is 1398420347. The next prime is 1398420367. The reversal of 1398420359 is 9530248931.

It is not a de Polignac number, because 1398420359 - 2²⁸ = 1129984903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398420259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159539 + ... + 168075.

It is an arithmetic number, because the mean of its divisors is an integer number (135617592).

Almost surely, 2^1398420359 is an apocalyptic number.

1398420359 is a deficient number, since it is larger than the sum of its proper divisors (228990745).

1398420359 is an equidigital number, since it uses as much as digits as its factorization.

1398420359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11894 (or 11887 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 1398420359 is about 37395.4590692506. The cubic root of 1398420359 is about 1118.2680392335.

It can be divided in two parts, 13984 and 20359, that added together give a palindrome (34343).

The spelling of 1398420359 in words is "one billion, three hundred ninety-eight million, four hundred twenty thousand, three hundred fifty-nine".