1220680704 has 44 divisors (see below), whose sum is σ = 3253567304. Its totient is φ = 406892544.

The previous prime is 1220680697. The next prime is 1220680723. The reversal of 1220680704 is 4070860221.

It is a super-2 number, since 2×1220680704² = 2980122762235871232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195607 + ... + 201750.

Almost surely, 2^1220680704 is an apocalyptic number.

It is an amenable number.

1220680704 is an abundant number, since it is smaller than the sum of its proper divisors (2032886600).

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

1220680704 is an equidigital number, since it uses as much as digits as its factorization.

1220680704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397380 (or 397362 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 1220680704 is about 34938.2412837281. The cubic root of 1220680704 is about 1068.7284233803.

The spelling of 1220680704 in words is "one billion, two hundred twenty million, six hundred eighty thousand, seven hundred four".