774220902 has 128 divisors (see below), whose sum is σ = 2032128000. Its totient is φ = 190826496.

The previous prime is 774220901. The next prime is 774220903. The reversal of 774220902 is 209022477.

774220902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (774220901) and next prime (774220903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (774220901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2218224 + ... + 2218572.

It is an arithmetic number, because the mean of its divisors is an integer number (15876000).

Almost surely, 2^774220902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774220902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1016064000).

774220902 is an abundant number, since it is smaller than the sum of its proper divisors (1257907098).

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

774220902 is a wasteful number, since it uses less digits than its factorization.

774220902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 774220902 is about 27824.8252824703. The cubic root of 774220902 is about 918.2373710382.

The spelling of 774220902 in words is "seven hundred seventy-four million, two hundred twenty thousand, nine hundred two".