1012912830 has 64 divisors (see below), whose sum is σ = 2713374720. Its totient is φ = 268882848.

The previous prime is 1012912793. The next prime is 1012912837. The reversal of 1012912830 is 382192101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1012912794 and 1012912803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012912837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51799 + ... + 68621.

It is an arithmetic number, because the mean of its divisors is an integer number (42396480).

Almost surely, 2^1012912830 is an apocalyptic number.

1012912830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012912830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356687360).

1012912830 is an abundant number, since it is smaller than the sum of its proper divisors (1700461890).

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

1012912830 is a wasteful number, since it uses less digits than its factorization.

1012912830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17062 (or 17056 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1012912830 is about 31826.2914898987. The cubic root of 1012912830 is about 1004.2858816431.

The spelling of 1012912830 in words is "one billion, twelve million, nine hundred twelve thousand, eight hundred thirty".