1427556312 has 320 divisors, whose sum is σ = 5044596480. Its totient is φ = 367089408.

The previous prime is 1427556287. The next prime is 1427556313. The reversal of 1427556312 is 2136557241.

1427556312 is a `hidden beast` number, since 14 + 2 + 7 + 5 + 5 + 631 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427556313) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2535343 + ... + 2535905.

It is an arithmetic number, because the mean of its divisors is an integer number (15764364).

Almost surely, 2^1427556312 is an apocalyptic number.

1427556312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427556312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2522298240).

1427556312 is an abundant number, since it is smaller than the sum of its proper divisors (3617040168).

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

1427556312 is a wasteful number, since it uses less digits than its factorization.

1427556312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 631 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 1427556312 is about 37783.0161845240. The cubic root of 1427556312 is about 1125.9810535592.

The spelling of 1427556312 in words is "one billion, four hundred twenty-seven million, five hundred fifty-six thousand, three hundred twelve".