774220642 has 16 divisors (see below), whose sum is σ = 1252081152. Its totient is φ = 356927760.

The previous prime is 774220637. The next prime is 774220673. The reversal of 774220642 is 246022477.

774220642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 774220598 and 774220607.

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, 7167 + ... + 39997.

It is an arithmetic number, because the mean of its divisors is an integer number (78255072).

Almost surely, 2^774220642 is an apocalyptic number.

774220642 is a deficient number, since it is larger than the sum of its proper divisors (477860510).

774220642 is a wasteful number, since it uses less digits than its factorization.

774220642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33753.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 774220642 is about 27824.8206103831. The cubic root of 774220642 is about 918.2372682503.

The spelling of 774220642 in words is "seven hundred seventy-four million, two hundred twenty thousand, six hundred forty-two".