1260061920 has 384 divisors, whose sum is σ = 4825457280. Its totient is φ = 309049344.

The previous prime is 1260061849. The next prime is 1260061937. The reversal of 1260061920 is 291600621.

1260061920 is a `hidden beast` number, since 1 + 26 + 0 + 0 + 619 + 20 = 666.

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

It is a congruent number.

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, 4548822 + ... + 4549098.

It is an arithmetic number, because the mean of its divisors is an integer number (12566295).

Almost surely, 2^1260061920 is an apocalyptic number.

1260061920 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 1260061920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412728640).

1260061920 is an abundant number, since it is smaller than the sum of its proper divisors (3565395360).

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

1260061920 is an equidigital number, since it uses as much as digits as its factorization.

1260061920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1260061920 is about 35497.3508870732. The cubic root of 1260061920 is about 1080.0999907422.

The spelling of 1260061920 in words is "one billion, two hundred sixty million, sixty-one thousand, nine hundred twenty".