1260940036 has 6 divisors (see below), whose sum is σ = 2206645070. Its totient is φ = 630470016.

The previous prime is 1260940033. The next prime is 1260940103. The reversal of 1260940036 is 6300490621.

It can be written as a sum of positive squares in only one way, i.e., 826217536 + 434722500 = 28744^2 + 20850^2 .

It is not an unprimeable number, because it can be changed into a prime (1260940033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157617501 + ... + 157617508.

Almost surely, 2^1260940036 is an apocalyptic number.

It is an amenable number.

1260940036 is a deficient number, since it is larger than the sum of its proper divisors (945705034).

1260940036 is a wasteful number, since it uses less digits than its factorization.

1260940036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315235013 (or 315235011 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1260940036 is about 35509.7174869077. The cubic root of 1260940036 is about 1080.3508336659.

The spelling of 1260940036 in words is "one billion, two hundred sixty million, nine hundred forty thousand, thirty-six".