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1427340 = 223523789
BaseRepresentation
bin101011100011110001100
32200111221110
411130132030
5331133330
650332020
715063225
oct5343614
92614843
101427340
11895422
1258a010
133ac8a5
1429224c
151d2db0
hex15c78c

1427340 has 24 divisors (see below), whose sum is σ = 3996720. Its totient is φ = 380608.

The previous prime is 1427329. The next prime is 1427341. The reversal of 1427340 is 437241.

It is not an unprimeable number, because it can be changed into a prime (1427341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11835 + ... + 11954.

It is an arithmetic number, because the mean of its divisors is an integer number (166530).

21427340 is an apocalyptic number.

1427340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427340 is an abundant number, since it is smaller than the sum of its proper divisors (2569380).

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

1427340 is a wasteful number, since it uses less digits than its factorization.

1427340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23801 (or 23799 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 1427340 is about 1194.7133547425. The cubic root of 1427340 is about 112.5924178858.

Subtracting from 1427340 its reverse (437241), we obtain a palindrome (990099).

The spelling of 1427340 in words is "one million, four hundred twenty-seven thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 23789 47578 71367 95156 118945 142734 237890 285468 356835 475780 713670 1427340