1210749120 has 280 divisors, whose sum is σ = 4922849184. Its totient is φ = 276701184.

The previous prime is 1210749107. The next prime is 1210749121. The reversal of 1210749120 is 219470121.

It is a tau number, because it is divible by the number of its divisors (280).

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

It is not an unprimeable number, because it can be changed into a prime (1210749121) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 178104 + ... + 184776.

Almost surely, 2^1210749120 is an apocalyptic number.

1210749120 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 1210749120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2461424592).

1210749120 is an abundant number, since it is smaller than the sum of its proper divisors (3712100064).

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

1210749120 is an equidigital number, since it uses as much as digits as its factorization.

1210749120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6709 (or 6690 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1210749120 is about 34795.8204386676. The cubic root of 1210749120 is about 1065.8220988237.

The spelling of 1210749120 in words is "one billion, two hundred ten million, seven hundred forty-nine thousand, one hundred twenty".