3490425681 has 8 divisors (see below), whose sum is σ = 4654465920. Its totient is φ = 2326667952.

The previous prime is 3490425677. The next prime is 3490425721. The reversal of 3490425681 is 1865240943.

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

It is not a de Polignac number, because 3490425681 - 2² = 3490425677 is a prime.

It is a super-2 number, since 2×3490425681² = 24366142869168627522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3490425641) 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, 39886 + ... + 92583.

It is an arithmetic number, because the mean of its divisors is an integer number (581808240).

Almost surely, 2^3490425681 is an apocalyptic number.

It is an amenable number.

3490425681 is a deficient number, since it is larger than the sum of its proper divisors (1164040239).

3490425681 is a wasteful number, since it uses less digits than its factorization.

3490425681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141255.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 3490425681 is about 59079.8246527527. The cubic root of 3490425681 is about 1516.9087801274.

The spelling of 3490425681 in words is "three billion, four hundred ninety million, four hundred twenty-five thousand, six hundred eighty-one".