1007798220 has 384 divisors, whose sum is σ = 3811368960. Its totient is φ = 217728000.

The previous prime is 1007798203. The next prime is 1007798221. The reversal of 1007798220 is 228977001.

1007798220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1007798221) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2393610 + ... + 2394030.

It is an arithmetic number, because the mean of its divisors is an integer number (9925440).

Almost surely, 2^1007798220 is an apocalyptic number.

1007798220 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 1007798220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905684480).

1007798220 is an abundant number, since it is smaller than the sum of its proper divisors (2803570740).

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

1007798220 is a wasteful number, since it uses less digits than its factorization.

1007798220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1007798220 is about 31745.8378374237. The cubic root of 1007798220 is about 1002.5926788736.

The spelling of 1007798220 in words is "one billion, seven million, seven hundred ninety-eight thousand, two hundred twenty".