3409193978 has 8 divisors (see below), whose sum is σ = 5382937920. Its totient is φ = 1614881340.

The previous prime is 3409193947. The next prime is 3409193987. The reversal of 3409193978 is 8793919043.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44857778 + ... + 44857853.

It is an arithmetic number, because the mean of its divisors is an integer number (672867240).

Almost surely, 2^3409193978 is an apocalyptic number.

3409193978 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3409193978 is a deficient number, since it is larger than the sum of its proper divisors (1973743942).

3409193978 is a wasteful number, since it uses less digits than its factorization.

3409193978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89715652.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 3409193978 is about 58388.3034348490. The cubic root of 3409193978 is about 1505.0487621203.

The spelling of 3409193978 in words is "three billion, four hundred nine million, one hundred ninety-three thousand, nine hundred seventy-eight".