1398058830 has 48 divisors (see below), whose sum is σ = 4154233824. Its totient is φ = 319556160.

The previous prime is 1398058811. The next prime is 1398058847. The reversal of 1398058830 is 388508931.

1398058830 is a `hidden beast` number, since 1 + 39 + 8 + 0 + 588 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1108941 + ... + 1110200.

It is an arithmetic number, because the mean of its divisors is an integer number (86546538).

Almost surely, 2^1398058830 is an apocalyptic number.

1398058830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1398058830 is an abundant number, since it is smaller than the sum of its proper divisors (2756174994).

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

1398058830 is a wasteful number, since it uses less digits than its factorization.

1398058830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219161 (or 2219158 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1398058830 is about 37390.6248944839. The cubic root of 1398058830 is about 1118.1716635459.

The spelling of 1398058830 in words is "one billion, three hundred ninety-eight million, fifty-eight thousand, eight hundred thirty".