1398229456 has 160 divisors (see below), whose sum is σ = 3229793280. Its totient is φ = 580608000.

The previous prime is 1398229387. The next prime is 1398229457. The reversal of 1398229456 is 6549228931.

It is a super-2 number, since 2×1398229456² = 3910091223252111872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398229457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12373656 + ... + 12373768.

It is an arithmetic number, because the mean of its divisors is an integer number (20186208).

Almost surely, 2^1398229456 is an apocalyptic number.

1398229456 is a gapful number since it is divisible by the number (16) 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 1398229456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1614896640).

1398229456 is an abundant number, since it is smaller than the sum of its proper divisors (1831563824).

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

1398229456 is a wasteful number, since it uses less digits than its factorization.

1398229456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 279 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 1398229456 is about 37392.9064930770. The cubic root of 1398229456 is about 1118.2171507584.

The spelling of 1398229456 in words is "one billion, three hundred ninety-eight million, two hundred twenty-nine thousand, four hundred fifty-six".