1427173412 has 54 divisors (see below), whose sum is σ = 3002456646. Its totient is φ = 591837120.

The previous prime is 1427173411. The next prime is 1427173417. The reversal of 1427173412 is 2143717241.

It can be written as a sum of positive squares in only one way, i.e., 771506176 + 655667236 = 27776^2 + 25606^2 .

It is not an unprimeable number, because it can be changed into a prime (1427173411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 184568 + ... + 192144.

It is an arithmetic number, because the mean of its divisors is an integer number (55601049).

Almost surely, 2^1427173412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427173412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501228323).

1427173412 is an abundant number, since it is smaller than the sum of its proper divisors (1575283234).

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

1427173412 is a wasteful number, since it uses less digits than its factorization.

1427173412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7657 (or 7617 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 1427173412 is about 37777.9487532079. The cubic root of 1427173412 is about 1125.8803741221.

The spelling of 1427173412 in words is "one billion, four hundred twenty-seven million, one hundred seventy-three thousand, four hundred twelve".