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1407842 = 28392
BaseRepresentation
bin101010111101101100010
32122112012022
411113231202
5330022332
650101442
714652332
oct5275542
92575168
101407842
11881807
1257a882
133a3a57
142890c2
151cc212
hex157b62

1407842 has 6 divisors (see below), whose sum is σ = 2114283. Its totient is φ = 703082.

The previous prime is 1407841. The next prime is 1407851. The reversal of 1407842 is 2487041.

It can be written as a sum of positive squares in only one way, i.e., 703921 + 703921 = 839^2 + 839^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=839.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1407841) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1259 + ... + 2097.

21407842 is an apocalyptic number.

1407842 is a deficient number, since it is larger than the sum of its proper divisors (706441).

1407842 is an frugal number, since it uses more digits than its factorization.

1407842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 1407842 is about 1186.5251788310. The cubic root of 1407842 is about 112.0773806242.

The spelling of 1407842 in words is "one million, four hundred seven thousand, eight hundred forty-two".

Divisors: 1 2 839 1678 703921 1407842