1427881630 has 64 divisors (see below), whose sum is σ = 3084438528. Its totient is φ = 465315840.

The previous prime is 1427881627. The next prime is 1427881633. The reversal of 1427881630 is 361887241.

It is an interprime number because it is at equal distance from previous prime (1427881627) and next prime (1427881633).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427881633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 259710 + ... + 265150.

It is an arithmetic number, because the mean of its divisors is an integer number (48194352).

Almost surely, 2^1427881630 is an apocalyptic number.

1427881630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1427881630 is an abundant number, since it is smaller than the sum of its proper divisors (1656556898).

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

1427881630 is a wasteful number, since it uses less digits than its factorization.

1427881630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5641.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1427881630 is about 37787.3210217396. The cubic root of 1427881630 is about 1126.0665782842.

The spelling of 1427881630 in words is "one billion, four hundred twenty-seven million, eight hundred eighty-one thousand, six hundred thirty".