1945077634 has 16 divisors (see below), whose sum is σ = 2974977720. Its totient is φ = 953447040.

The previous prime is 1945077623. The next prime is 1945077637. The reversal of 1945077634 is 4367705491.

It can be written as a sum of positive squares in 4 ways, for example, as 1404375625 + 540702009 = 37475^2 + 23253^2 .

It is not an unprimeable number, because it can be changed into a prime (1945077637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145054 + ... + 157894.

Almost surely, 2^1945077634 is an apocalyptic number.

1945077634 is a deficient number, since it is larger than the sum of its proper divisors (1029900086).

1945077634 is a wasteful number, since it uses less digits than its factorization.

1945077634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14325.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 1945077634 is about 44103.0342947058. The cubic root of 1945077634 is about 1248.2808653314.

The spelling of 1945077634 in words is "one billion, nine hundred forty-five million, seventy-seven thousand, six hundred thirty-four".