1394274549 has 16 divisors (see below), whose sum is σ = 1958463680. Its totient is φ = 879880320.

The previous prime is 1394274509. The next prime is 1394274571. The reversal of 1394274549 is 9454724931.

It is not a de Polignac number, because 1394274549 - 2¹⁹ = 1393750261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1394274498 and 1394274507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394274509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66039 + ... + 84555.

It is an arithmetic number, because the mean of its divisors is an integer number (122403980).

Almost surely, 2^1394274549 is an apocalyptic number.

1394274549 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1394274549 is a deficient number, since it is larger than the sum of its proper divisors (564189131).

1394274549 is a wasteful number, since it uses less digits than its factorization.

1394274549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19860.

The product of its digits is 1088640, while the sum is 48.

The square root of 1394274549 is about 37339.9859266176. The cubic root of 1394274549 is about 1117.1618587659.

The spelling of 1394274549 in words is "one billion, three hundred ninety-four million, two hundred seventy-four thousand, five hundred forty-nine".