1375746642 has 48 divisors (see below), whose sum is σ = 3154245120. Its totient is φ = 432151200.

The previous prime is 1375746629. The next prime is 1375746643. The reversal of 1375746642 is 2466475731.

1375746642 is a `hidden beast` number, since 1 + 37 + 574 + 6 + 6 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (1375746643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54792 + ... + 75852.

It is an arithmetic number, because the mean of its divisors is an integer number (65713440).

Almost surely, 2^1375746642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1375746642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577122560).

1375746642 is an abundant number, since it is smaller than the sum of its proper divisors (1778498478).

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

1375746642 is a wasteful number, since it uses less digits than its factorization.

1375746642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21279 (or 21276 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 1375746642 is about 37091.0587877995. The cubic root of 1375746642 is about 1112.1912836450.

The spelling of 1375746642 in words is "one billion, three hundred seventy-five million, seven hundred forty-six thousand, six hundred forty-two".