1398422146 has 16 divisors (see below), whose sum is σ = 2306350080. Its totient is φ = 630640080.

The previous prime is 1398422089. The next prime is 1398422171. The reversal of 1398422146 is 6412248931.

It is a junction number, because it is equal to n+sod(n) for n = 1398422099 and 1398422108.

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, 247461 + ... + 253048.

It is an arithmetic number, because the mean of its divisors is an integer number (144146880).

Almost surely, 2^1398422146 is an apocalyptic number.

1398422146 is a deficient number, since it is larger than the sum of its proper divisors (907927934).

1398422146 is a wasteful number, since it uses less digits than its factorization.

1398422146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500649.

The product of its digits is 82944, while the sum is 40.

The square root of 1398422146 is about 37395.4829625183. The cubic root of 1398422146 is about 1118.2685155671.

The spelling of 1398422146 in words is "one billion, three hundred ninety-eight million, four hundred twenty-two thousand, one hundred forty-six".