1398633696 has 192 divisors, whose sum is σ = 4270694400. Its totient is φ = 444787200.

The previous prime is 1398633689. The next prime is 1398633713. The reversal of 1398633696 is 6963368931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

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, 2115606 + ... + 2116266.

It is an arithmetic number, because the mean of its divisors is an integer number (22243200).

Almost surely, 2^1398633696 is an apocalyptic number.

1398633696 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 1398633696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2135347200).

1398633696 is an abundant number, since it is smaller than the sum of its proper divisors (2872060704).

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

1398633696 is a wasteful number, since it uses less digits than its factorization.

1398633696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 776 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The square root of 1398633696 is about 37398.3114057306. The cubic root of 1398633696 is about 1118.3249023973.

The spelling of 1398633696 in words is "one billion, three hundred ninety-eight million, six hundred thirty-three thousand, six hundred ninety-six".