3918409494 has 8 divisors (see below), whose sum is σ = 7836819000. Its totient is φ = 1306136496.

The previous prime is 3918409493. The next prime is 3918409507. The reversal of 3918409494 is 4949048193.

It is a happy number.

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

3918409494 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918409493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326534119 + ... + 326534130.

It is an arithmetic number, because the mean of its divisors is an integer number (979602375).

Almost surely, 2^3918409494 is an apocalyptic number.

3918409494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3918409494 is a wasteful number, since it uses less digits than its factorization.

3918409494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653068254.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The square root of 3918409494 is about 62597.2003687066. The cubic root of 3918409494 is about 1576.5337532955.

The spelling of 3918409494 in words is "three billion, nine hundred eighteen million, four hundred nine thousand, four hundred ninety-four".