3478356378 has 64 divisors (see below), whose sum is σ = 9218027520. Its totient is φ = 950604336.

The previous prime is 3478356359. The next prime is 3478356379. The reversal of 3478356378 is 8736538743.

3478356378 is a `hidden beast` number, since 3 + 4 + 7 + 8 + 3 + 563 + 78 = 666.

3478356378 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (3478356379) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191350 + ... + 208737.

It is an arithmetic number, because the mean of its divisors is an integer number (144031680).

Almost surely, 2^3478356378 is an apocalyptic number.

3478356378 is an abundant number, since it is smaller than the sum of its proper divisors (5739671142).

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

3478356378 is a wasteful number, since it uses less digits than its factorization.

3478356378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400128 (or 400122 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 54.

The square root of 3478356378 is about 58977.5921685516. The cubic root of 3478356378 is about 1515.1583561557.

The spelling of 3478356378 in words is "three billion, four hundred seventy-eight million, three hundred fifty-six thousand, three hundred seventy-eight".