1398162772 has 6 divisors (see below), whose sum is σ = 2446784858. Its totient is φ = 699081384.

The previous prime is 1398162769. The next prime is 1398162803. The reversal of 1398162772 is 2772618931.

It can be written as a sum of positive squares in only one way, i.e., 1085438916 + 312723856 = 32946^2 + 17684^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174770343 + ... + 174770350.

Almost surely, 2^1398162772 is an apocalyptic number.

It is an amenable number.

1398162772 is a deficient number, since it is larger than the sum of its proper divisors (1048622086).

1398162772 is a wasteful number, since it uses less digits than its factorization.

1398162772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349540697 (or 349540695 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 1398162772 is about 37392.0148160005. The cubic root of 1398162772 is about 1118.1993739008.

The spelling of 1398162772 in words is "one billion, three hundred ninety-eight million, one hundred sixty-two thousand, seven hundred seventy-two".