1398286752 has 24 divisors (see below), whose sum is σ = 3670502976. Its totient is φ = 466095552.

The previous prime is 1398286733. The next prime is 1398286753. The reversal of 1398286752 is 2576828931.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 1398286695 and 1398286704.

It is not an unprimeable number, because it can be changed into a prime (1398286753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7282648 + ... + 7282839.

It is an arithmetic number, because the mean of its divisors is an integer number (152937624).

Almost surely, 2^1398286752 is an apocalyptic number.

1398286752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1398286752 is an abundant number, since it is smaller than the sum of its proper divisors (2272216224).

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

1398286752 is a wasteful number, since it uses less digits than its factorization.

1398286752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14565500 (or 14565492 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 1398286752 is about 37393.6726198431. The cubic root of 1398286752 is about 1118.2324244782.

The spelling of 1398286752 in words is "one billion, three hundred ninety-eight million, two hundred eighty-six thousand, seven hundred fifty-two".