1427931740 has 24 divisors (see below), whose sum is σ = 3001110000. Its totient is φ = 570705408.

The previous prime is 1427931731. The next prime is 1427931749. The reversal of 1427931740 is 471397241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1427931731) and next prime (1427931749).

It is a junction number, because it is equal to n+sod(n) for n = 1427931694 and 1427931703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427931749) 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 7 ways as a sum of consecutive naturals, for example, 3602 + ... + 53561.

It is an arithmetic number, because the mean of its divisors is an integer number (125046250).

Almost surely, 2^1427931740 is an apocalyptic number.

1427931740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427931740 is an abundant number, since it is smaller than the sum of its proper divisors (1573178260).

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

1427931740 is a wasteful number, since it uses less digits than its factorization.

1427931740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58421 (or 58419 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1427931740 is about 37787.9840690133. The cubic root of 1427931740 is about 1126.0797508365.

The spelling of 1427931740 in words is "one billion, four hundred twenty-seven million, nine hundred thirty-one thousand, seven hundred forty".