1219055960 has 32 divisors (see below), whose sum is σ = 2887239600. Its totient is φ = 461957760.

The previous prime is 1219055947. The next prime is 1219055963. The reversal of 1219055960 is 695509121.

It is a super-2 number, since 2×1219055960² = 2972194867223043200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1219055963) 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, 801251 + ... + 802770.

Almost surely, 2^1219055960 is an apocalyptic number.

1219055960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1219055960 is an abundant number, since it is smaller than the sum of its proper divisors (1668183640).

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

1219055960 is a wasteful number, since it uses less digits than its factorization.

1219055960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604051 (or 1604047 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 38.

The square root of 1219055960 is about 34914.9818845721. The cubic root of 1219055960 is about 1068.2540484260.

The spelling of 1219055960 in words is "one billion, two hundred nineteen million, fifty-five thousand, nine hundred sixty".