1398318954 has 16 divisors (see below), whose sum is σ = 2797014240. Its totient is φ = 466043600.

The previous prime is 1398318941. The next prime is 1398318983. The reversal of 1398318954 is 4598138931.

It is a junction number, because it is equal to n+sod(n) for n = 1398318897 and 1398318906.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62977 + ... + 82235.

It is an arithmetic number, because the mean of its divisors is an integer number (174813390).

Almost surely, 2^1398318954 is an apocalyptic number.

1398318954 is an abundant number, since it is smaller than the sum of its proper divisors (1398695286).

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

1398318954 is a wasteful number, since it uses less digits than its factorization.

1398318954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31365.

The product of its digits is 933120, while the sum is 51.

The square root of 1398318954 is about 37394.1031982317. The cubic root of 1398318954 is about 1118.2410085649.

It can be divided in two parts, 139831 and 8954, that added together give a triangular number (148785 = T₅₄₅).

The spelling of 1398318954 in words is "one billion, three hundred ninety-eight million, three hundred eighteen thousand, nine hundred fifty-four".