3247920394 has 8 divisors (see below), whose sum is σ = 4872732480. Its totient is φ = 1623676236.

The previous prime is 3247920373. The next prime is 3247920407. The reversal of 3247920394 is 4930297423.

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

It is a super-2 number, since 2×3247920394² = 21097973771522230472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3247920394.

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, 127384 + ... + 150739.

It is an arithmetic number, because the mean of its divisors is an integer number (609091560).

Almost surely, 2^3247920394 is an apocalyptic number.

3247920394 is a deficient number, since it is larger than the sum of its proper divisors (1624812086).

3247920394 is a wasteful number, since it uses less digits than its factorization.

3247920394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283964.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 3247920394 is about 56990.5289850866. The cubic root of 3247920394 is about 1480.9320270690.

The spelling of 3247920394 in words is "three billion, two hundred forty-seven million, nine hundred twenty thousand, three hundred ninety-four".