1398132734 has 8 divisors (see below), whose sum is σ = 2220563808. Its totient is φ = 657944800.

The previous prime is 1398132733. The next prime is 1398132737. The reversal of 1398132734 is 4372318931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1398132691 and 1398132700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398132731) 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, 20560742 + ... + 20560809.

It is an arithmetic number, because the mean of its divisors is an integer number (277570476).

Almost surely, 2^1398132734 is an apocalyptic number.

1398132734 is a deficient number, since it is larger than the sum of its proper divisors (822431074).

1398132734 is a wasteful number, since it uses less digits than its factorization.

1398132734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41121570.

The product of its digits is 108864, while the sum is 41.

The square root of 1398132734 is about 37391.6131505449. The cubic root of 1398132734 is about 1118.1913660794.

The spelling of 1398132734 in words is "one billion, three hundred ninety-eight million, one hundred thirty-two thousand, seven hundred thirty-four".