1427373140 has 12 divisors (see below), whose sum is σ = 2997483636. Its totient is φ = 570949248.

The previous prime is 1427373121. The next prime is 1427373149. The reversal of 1427373140 is 413737241.

It can be written as a sum of positive squares in 2 ways, for example, as 159870736 + 1267502404 = 12644^2 + 35602^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1427373097 and 1427373106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427373149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35684309 + ... + 35684348.

It is an arithmetic number, because the mean of its divisors is an integer number (249790303).

Almost surely, 2^1427373140 is an apocalyptic number.

1427373140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427373140 is an abundant number, since it is smaller than the sum of its proper divisors (1570110496).

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

1427373140 is a wasteful number, since it uses less digits than its factorization.

1427373140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71368666 (or 71368664 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 1427373140 is about 37780.5921075888. The cubic root of 1427373140 is about 1125.9328926982.

The spelling of 1427373140 in words is "one billion, four hundred twenty-seven million, three hundred seventy-three thousand, one hundred forty".