734634378 has 24 divisors (see below), whose sum is σ = 1621742148. Its totient is φ = 240257472.

The previous prime is 734634377. The next prime is 734634389. The reversal of 734634378 is 873436437.

734634378 is a `hidden beast` number, since 7 + 3 + 4 + 634 + 3 + 7 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 734030649 + 603729 = 27093^2 + 777^2 .

It is not an unprimeable number, because it can be changed into a prime (734634377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384075 + ... + 385982.

Almost surely, 2^734634378 is an apocalyptic number.

734634378 is an abundant number, since it is smaller than the sum of its proper divisors (887107770).

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

734634378 is a wasteful number, since it uses less digits than its factorization.

734634378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770118 (or 770115 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 45.

The square root of 734634378 is about 27104.1394993459. The cubic root of 734634378 is about 902.3127259819.

It can be divided in two parts, 73463 and 4378, that added together give a square (77841 = 279²).

The spelling of 734634378 in words is "seven hundred thirty-four million, six hundred thirty-four thousand, three hundred seventy-eight".