1212580560 has 80 divisors (see below), whose sum is σ = 3762973440. Its totient is φ = 323013120.

The previous prime is 1212580549. The next prime is 1212580583. The reversal of 1212580560 is 650852121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1212580560² = 2940703228979827200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292905 + ... + 297015.

It is an arithmetic number, because the mean of its divisors is an integer number (47037168).

Almost surely, 2^1212580560 is an apocalyptic number.

1212580560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212580560 is an abundant number, since it is smaller than the sum of its proper divisors (2550392880).

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

1212580560 is a wasteful number, since it uses less digits than its factorization.

1212580560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356 (or 5350 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1212580560 is about 34822.1274479317. The cubic root of 1212580560 is about 1066.3592334491.

The spelling of 1212580560 in words is "one billion, two hundred twelve million, five hundred eighty thousand, five hundred sixty".