774484740 has 288 divisors, whose sum is σ = 2579391360. Its totient is φ = 194835456.

The previous prime is 774484709. The next prime is 774484751. The reversal of 774484740 is 47484477.

It is a super-2 number, since 2×774484740² = 1199653224985735200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10609344 + ... + 10609416.

It is an arithmetic number, because the mean of its divisors is an integer number (8956220).

Almost surely, 2^774484740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774484740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289695680).

774484740 is an abundant number, since it is smaller than the sum of its proper divisors (1804906620).

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

774484740 is a wasteful number, since it uses less digits than its factorization.

774484740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 45.

The square root of 774484740 is about 27829.5659326551. The cubic root of 774484740 is about 918.3416644410.

The spelling of 774484740 in words is "seven hundred seventy-four million, four hundred eighty-four thousand, seven hundred forty".