1427740 has 12 divisors (see below), whose sum is σ = 2998296. Its totient is φ = 571088.

The previous prime is 1427737. The next prime is 1427747. The reversal of 1427740 is 477241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427747) 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, 35674 + ... + 35713.

It is an arithmetic number, because the mean of its divisors is an integer number (249858).

2^1427740 is an apocalyptic number.

1427740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427740 is an abundant number, since it is smaller than the sum of its proper divisors (1570556).

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

1427740 is a wasteful number, since it uses less digits than its factorization.

1427740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71396 (or 71394 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 1427740 is about 1194.8807471878. The cubic root of 1427740 is about 112.6029345954.

The spelling of 1427740 in words is "one million, four hundred twenty-seven thousand, seven hundred forty".