1398235506 has 32 divisors (see below), whose sum is σ = 2876964480. Its totient is φ = 452834304.

The previous prime is 1398235483. The next prime is 1398235511. The reversal of 1398235506 is 6055328931.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11410 + ... + 54098.

It is an arithmetic number, because the mean of its divisors is an integer number (89905140).

Almost surely, 2^1398235506 is an apocalyptic number.

1398235506 is an abundant number, since it is smaller than the sum of its proper divisors (1478728974).

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

1398235506 is a wasteful number, since it uses less digits than its factorization.

1398235506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42850.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 1398235506 is about 37392.9873906860. The cubic root of 1398235506 is about 1118.2187635610.

The spelling of 1398235506 in words is "one billion, three hundred ninety-eight million, two hundred thirty-five thousand, five hundred six".