1349827843 has 18 divisors (see below), whose sum is σ = 1700294724. Its totient is φ = 1067989104.

The previous prime is 1349827819. The next prime is 1349827859. The reversal of 1349827843 is 3487289431.

It is a happy number.

It is not a de Polignac number, because 1349827843 - 2²¹ = 1347730691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1349827873) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73221 + ... + 89782.

It is an arithmetic number, because the mean of its divisors is an integer number (94460818).

Almost surely, 2^1349827843 is an apocalyptic number.

1349827843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1349827843 is a deficient number, since it is larger than the sum of its proper divisors (350466881).

1349827843 is a wasteful number, since it uses less digits than its factorization.

1349827843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163043 (or 163023 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 1349827843 is about 36740.0033070222. The cubic root of 1349827843 is about 1105.1624674608.

The spelling of 1349827843 in words is "one billion, three hundred forty-nine million, eight hundred twenty-seven thousand, eight hundred forty-three".