1272088398 has 64 divisors (see below), whose sum is σ = 2993061888. Its totient is φ = 352931040.

The previous prime is 1272088397. The next prime is 1272088409. The reversal of 1272088398 is 8938802721.

1272088398 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272088397) 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, 196611 + ... + 202977.

It is an arithmetic number, because the mean of its divisors is an integer number (46766592).

Almost surely, 2^1272088398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272088398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496530944).

1272088398 is an abundant number, since it is smaller than the sum of its proper divisors (1720973490).

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

1272088398 is a wasteful number, since it uses less digits than its factorization.

1272088398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517.

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 1272088398 is about 35666.3482571457. The cubic root of 1272088398 is about 1083.5254018008.

The spelling of 1272088398 in words is "one billion, two hundred seventy-two million, eighty-eight thousand, three hundred ninety-eight".