1394087244 has 96 divisors (see below), whose sum is σ = 3795144192. Its totient is φ = 393600000.

The previous prime is 1394087243. The next prime is 1394087251. The reversal of 1394087244 is 4427804931.

It is a junction number, because it is equal to n+sod(n) for n = 1394087196 and 1394087205.

It is not an unprimeable number, because it can be changed into a prime (1394087243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223569 + ... + 229719.

It is an arithmetic number, because the mean of its divisors is an integer number (39532752).

Almost surely, 2^1394087244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394087244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1897572096).

1394087244 is an abundant number, since it is smaller than the sum of its proper divisors (2401056948).

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

1394087244 is a wasteful number, since it uses less digits than its factorization.

1394087244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6287 (or 6285 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 1394087244 is about 37337.4777402009. The cubic root of 1394087244 is about 1117.1118305098. Note that the first 3 decimals are identical.

The spelling of 1394087244 in words is "one billion, three hundred ninety-four million, eighty-seven thousand, two hundred forty-four".