1213047360 has 448 divisors, whose sum is σ = 5056266240. Its totient is φ = 267909120.

The previous prime is 1213047349. The next prime is 1213047373. The reversal of 1213047360 is 637403121.

1213047360 is a `hidden beast` number, since 1 + 2 + 130 + 473 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1874557 + ... + 1875203.

Almost surely, 2^1213047360 is an apocalyptic number.

1213047360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213047360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2528133120).

1213047360 is an abundant number, since it is smaller than the sum of its proper divisors (3843218880).

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

1213047360 is a wasteful number, since it uses less digits than its factorization.

1213047360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1213047360 is about 34828.8294376943. The cubic root of 1213047360 is about 1066.4960525727.

The spelling of 1213047360 in words is "one billion, two hundred thirteen million, forty-seven thousand, three hundred sixty".