1272412000 has 48 divisors (see below), whose sum is σ = 3126326112. Its totient is φ = 508963200.

The previous prime is 1272411997. The next prime is 1272412051. The reversal of 1272412000 is 2142721.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155052 + ... + 163051.

It is an arithmetic number, because the mean of its divisors is an integer number (65131794).

Almost surely, 2^1272412000 is an apocalyptic number.

1272412000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272412000 is an abundant number, since it is smaller than the sum of its proper divisors (1853914112).

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

1272412000 is an equidigital number, since it uses as much as digits as its factorization.

1272412000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318128 (or 318110 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1272412000 is about 35670.8844858100. The cubic root of 1272412000 is about 1083.6172720565.

Adding to 1272412000 its reverse (2142721), we get a palindrome (1274554721).

The spelling of 1272412000 in words is "one billion, two hundred seventy-two million, four hundred twelve thousand".