1012997600 has 36 divisors (see below), whose sum is σ = 2472982344. Its totient is φ = 405198720.

The previous prime is 1012997599. The next prime is 1012997603. The reversal of 1012997600 is 67992101.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012997603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 632324 + ... + 633923.

It is an arithmetic number, because the mean of its divisors is an integer number (68693954).

Almost surely, 2^1012997600 is an apocalyptic number.

1012997600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012997600 is an abundant number, since it is smaller than the sum of its proper divisors (1459984744).

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

1012997600 is a wasteful number, since it uses less digits than its factorization.

1012997600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266267 (or 1266254 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 1012997600 is about 31827.6232226033. The cubic root of 1012997600 is about 1004.3138968670.

The spelling of 1012997600 in words is "one billion, twelve million, nine hundred ninety-seven thousand, six hundred".