1394105742 has 40 divisors (see below), whose sum is σ = 3137554200. Its totient is φ = 462660336.

The previous prime is 1394105737. The next prime is 1394105759. The reversal of 1394105742 is 2475014931.

It is a junction number, because it is equal to n+sod(n) for n = 1394105697 and 1394105706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18309 + ... + 55887.

It is an arithmetic number, because the mean of its divisors is an integer number (78438855).

Almost surely, 2^1394105742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394105742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568777100).

1394105742 is an abundant number, since it is smaller than the sum of its proper divisors (1743448458).

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

1394105742 is a wasteful number, since it uses less digits than its factorization.

1394105742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37822 (or 37813 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1394105742 is about 37337.7254529517. The cubic root of 1394105742 is about 1117.1167714352.

The spelling of 1394105742 in words is "one billion, three hundred ninety-four million, one hundred five thousand, seven hundred forty-two".