1351788042 has 48 divisors (see below), whose sum is σ = 2993610816. Its totient is φ = 406612800.

The previous prime is 1351788037. The next prime is 1351788043. The reversal of 1351788042 is 2408871531.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1351788043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92667 + ... + 106257.

It is an arithmetic number, because the mean of its divisors is an integer number (62366892).

Almost surely, 2^1351788042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1351788042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496805408).

1351788042 is an abundant number, since it is smaller than the sum of its proper divisors (1641822774).

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

1351788042 is a wasteful number, since it uses less digits than its factorization.

1351788042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13755 (or 13744 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1351788042 is about 36766.6702598971. The cubic root of 1351788042 is about 1105.6971752951.

The spelling of 1351788042 in words is "one billion, three hundred fifty-one million, seven hundred eighty-eight thousand, forty-two".