1214791020 has 96 divisors (see below), whose sum is σ = 3826146240. Its totient is φ = 323932608.

The previous prime is 1214791013. The next prime is 1214791031. The reversal of 1214791020 is 201974121.

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 31 ways as a sum of consecutive naturals, for example, 29854 + ... + 57626.

It is an arithmetic number, because the mean of its divisors is an integer number (39855690).

Almost surely, 2^1214791020 is an apocalyptic number.

1214791020 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 1214791020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1913073120).

1214791020 is an abundant number, since it is smaller than the sum of its proper divisors (2611355220).

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

1214791020 is an equidigital number, since it uses as much as digits as its factorization.

1214791020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27803 (or 27783 counting only the distinct ones).

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

The square root of 1214791020 is about 34853.8522978451. The cubic root of 1214791020 is about 1067.0068092743.

The spelling of 1214791020 in words is "one billion, two hundred fourteen million, seven hundred ninety-one thousand, twenty".