1427187498 has 96 divisors (see below), whose sum is σ = 3309465600. Its totient is φ = 409368960.

The previous prime is 1427187497. The next prime is 1427187529. The reversal of 1427187498 is 8947817241.

It is a self number, because there is not a number n which added to its sum of digits gives 1427187498.

It is not an unprimeable number, because it can be changed into a prime (1427187497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1115223 + ... + 1116501.

It is an arithmetic number, because the mean of its divisors is an integer number (34473600).

Almost surely, 2^1427187498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1427187498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1654732800).

1427187498 is an abundant number, since it is smaller than the sum of its proper divisors (1882278102).

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

1427187498 is a wasteful number, since it uses less digits than its factorization.

1427187498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1377 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 1427187498 is about 37778.1351842570. The cubic root of 1427187498 is about 1125.8840782034.

The spelling of 1427187498 in words is "one billion, four hundred twenty-seven million, one hundred eighty-seven thousand, four hundred ninety-eight".