1398471936 has 36 divisors (see below), whose sum is σ = 3721976832. Its totient is φ = 466157056.

The previous prime is 1398471913. The next prime is 1398471937. The reversal of 1398471936 is 6391748931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398471937) 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, 909696 + ... + 911231.

Almost surely, 2^1398471936 is an apocalyptic number.

1398471936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1398471936 is an abundant number, since it is smaller than the sum of its proper divisors (2323504896).

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

1398471936 is an equidigital number, since it uses as much as digits as its factorization.

1398471936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820946 (or 1820932 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 1398471936 is about 37396.1486787075. The cubic root of 1398471936 is about 1118.2817871744.

The spelling of 1398471936 in words is "one billion, three hundred ninety-eight million, four hundred seventy-one thousand, nine hundred thirty-six".