1398650460 has 96 divisors (see below), whose sum is σ = 4042725120. Its totient is φ = 361118208.

The previous prime is 1398650441. The next prime is 1398650479. The reversal of 1398650460 is 640568931.

It is an interprime number because it is at equal distance from previous prime (1398650441) and next prime (1398650479).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234232 + ... + 240128.

It is an arithmetic number, because the mean of its divisors is an integer number (42111720).

Almost surely, 2^1398650460 is an apocalyptic number.

1398650460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1398650460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2021362560).

1398650460 is an abundant number, since it is smaller than the sum of its proper divisors (2644074660).

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

1398650460 is a wasteful number, since it uses less digits than its factorization.

1398650460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6033 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 1398650460 is about 37398.5355328253. The cubic root of 1398650460 is about 1118.3293704540.

It can be divided in two parts, 13986 and 50460, that added together give a palindrome (64446).

The spelling of 1398650460 in words is "one billion, three hundred ninety-eight million, six hundred fifty thousand, four hundred sixty".