1398069424 has 20 divisors (see below), whose sum is σ = 2718013536. Its totient is φ = 696646592.

The previous prime is 1398069401. The next prime is 1398069427. The reversal of 1398069424 is 4249608931.

It is a super-2 number, since 2×1398069424² = 3909196228647383552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1398069427) 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, 144424 + ... + 153799.

Almost surely, 2^1398069424 is an apocalyptic number.

It is an amenable number.

1398069424 is a deficient number, since it is larger than the sum of its proper divisors (1319944112).

1398069424 is a wasteful number, since it uses less digits than its factorization.

1398069424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298524 (or 298518 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 1398069424 is about 37390.7665607433. The cubic root of 1398069424 is about 1118.1744879099.

The spelling of 1398069424 in words is "one billion, three hundred ninety-eight million, sixty-nine thousand, four hundred twenty-four".