7790000420 has 24 divisors (see below), whose sum is σ = 16667663544. Its totient is φ = 3057207296.

The previous prime is 7790000377. The next prime is 7790000431. The reversal of 7790000420 is 240000977.

It can be written as a sum of positive squares in 4 ways, for example, as 3245353024 + 4544647396 = 56968^2 + 67414^2 .

It is a super-4 number, since 4×7790000420⁴ (a number of 41 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3673469 + ... + 3675588.

It is an arithmetic number, because the mean of its divisors is an integer number (694485981).

Almost surely, 2^7790000420 is an apocalyptic number.

It is an amenable number.

7790000420 is an abundant number, since it is smaller than the sum of its proper divisors (8877663124).

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

7790000420 is a wasteful number, since it uses less digits than its factorization.

7790000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7349119 (or 7349117 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 7790000420 is about 88260.9790337723. The cubic root of 7790000420 is about 1982.3446377066.

The spelling of 7790000420 in words is "seven billion, seven hundred ninety million, four hundred twenty", and thus it is an aban number.