1398434544 has 100 divisors (see below), whose sum is σ = 4358872056. Its totient is φ = 430282368.

The previous prime is 1398434507. The next prime is 1398434567. The reversal of 1398434544 is 4454348931.

1398434544 is a `hidden beast` number, since 13 + 98 + 4 + 3 + 4 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1398434544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24654 + ... + 58349.

Almost surely, 2^1398434544 is an apocalyptic number.

It is an amenable number.

1398434544 is an abundant number, since it is smaller than the sum of its proper divisors (2960437512).

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

1398434544 is a wasteful number, since it uses less digits than its factorization.

1398434544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83036 (or 83021 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 1398434544 is about 37395.6487308350. The cubic root of 1398434544 is about 1118.2718203041.

The spelling of 1398434544 in words is "one billion, three hundred ninety-eight million, four hundred thirty-four thousand, five hundred forty-four".