3278766401 has 8 divisors (see below), whose sum is σ = 3352449600. Its totient is φ = 3205521072.

The previous prime is 3278766391. The next prime is 3278766431. The reversal of 3278766401 is 1046678723.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3278766401 is a prime.

It is a super-2 number, since 2×3278766401² = 21500618224652985602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3278766431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94301 + ... + 124298.

It is an arithmetic number, because the mean of its divisors is an integer number (419056200).

Almost surely, 2^3278766401 is an apocalyptic number.

It is an amenable number.

3278766401 is a deficient number, since it is larger than the sum of its proper divisors (73683199).

3278766401 is a wasteful number, since it uses less digits than its factorization.

3278766401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218935.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 3278766401 is about 57260.5134538628. The cubic root of 3278766401 is about 1485.6054775305.

The spelling of 3278766401 in words is "three billion, two hundred seventy-eight million, seven hundred sixty-six thousand, four hundred one".