1220880774 has 8 divisors (see below), whose sum is σ = 2441761560. Its totient is φ = 406960256.

The previous prime is 1220880761. The next prime is 1220880799. The reversal of 1220880774 is 4770880221.

It is a sphenic number, since it is the product of 3 distinct primes.

1220880774 is an admirable number.

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, 101740059 + ... + 101740070.

It is an arithmetic number, because the mean of its divisors is an integer number (305220195).

Almost surely, 2^1220880774 is an apocalyptic number.

1220880774 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1220880774 is a wasteful number, since it uses less digits than its factorization.

1220880774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203480134.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 1220880774 is about 34941.1043614823. The cubic root of 1220880774 is about 1068.7868085131.

The spelling of 1220880774 in words is "one billion, two hundred twenty million, eight hundred eighty thousand, seven hundred seventy-four".