1207947020 has 72 divisors (see below), whose sum is σ = 2995047216. Its totient is φ = 407949696.

The previous prime is 1207947017. The next prime is 1207947073. The reversal of 1207947020 is 207497021.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56462 + ... + 74858.

It is an arithmetic number, because the mean of its divisors is an integer number (41597878).

Almost surely, 2^1207947020 is an apocalyptic number.

1207947020 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 1207947020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497523608).

1207947020 is an abundant number, since it is smaller than the sum of its proper divisors (1787100196).

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

1207947020 is a wasteful number, since it uses less digits than its factorization.

1207947020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18487 (or 18478 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1207947020 is about 34755.5322215040. The cubic root of 1207947020 is about 1064.9992344253. Note that the first 3 decimals are identical.

The spelling of 1207947020 in words is "one billion, two hundred seven million, nine hundred forty-seven thousand, twenty".