1260217408 has 28 divisors (see below), whose sum is σ = 2632364560. Its totient is φ = 596944512.

The previous prime is 1260217397. The next prime is 1260217421. The reversal of 1260217408 is 8047120621.

It is a self number, because there is not a number n which added to its sum of digits gives 1260217408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516966 + ... + 519397.

It is an arithmetic number, because the mean of its divisors is an integer number (94013020).

Almost surely, 2^1260217408 is an apocalyptic number.

It is an amenable number.

1260217408 is an abundant number, since it is smaller than the sum of its proper divisors (1372147152).

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

1260217408 is a wasteful number, since it uses less digits than its factorization.

1260217408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036394 (or 1036384 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1260217408 is about 35499.5409547786. The cubic root of 1260217408 is about 1080.1444159875.

The spelling of 1260217408 in words is "one billion, two hundred sixty million, two hundred seventeen thousand, four hundred eight".