1012000398 has 16 divisors (see below), whose sum is σ = 2028377856. Its totient is φ = 336603960.

The previous prime is 1012000397. The next prime is 1012000403. The reversal of 1012000398 is 8930002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012000397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179368 + ... + 184923.

It is an arithmetic number, because the mean of its divisors is an integer number (126773616).

Almost surely, 2^1012000398 is an apocalyptic number.

1012000398 is an abundant number, since it is smaller than the sum of its proper divisors (1016377458).

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

1012000398 is a wasteful number, since it uses less digits than its factorization.

1012000398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364759.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1012000398 is about 31811.9536966845. The cubic root of 1012000398 is about 1003.9842374366.

Adding to 1012000398 its reverse (8930002101), we get a palindrome (9942002499).

The spelling of 1012000398 in words is "one billion, twelve million, three hundred ninety-eight", and thus it is an aban number.