3498090640 has 60 divisors (see below), whose sum is σ = 8939670012. Its totient is φ = 1272029440.

The previous prime is 3498090637. The next prime is 3498090643. The reversal of 3498090640 is 460908943.

It is an interprime number because it is at equal distance from previous prime (3498090637) and next prime (3498090643).

It can be written as a sum of positive squares in 2 ways, for example, as 1202147584 + 2295943056 = 34672^2 + 47916^2 .

It is not an unprimeable number, because it can be changed into a prime (3498090643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171007 + ... + 190366.

Almost surely, 2^3498090640 is an apocalyptic number.

It is an amenable number.

3498090640 is an abundant number, since it is smaller than the sum of its proper divisors (5441579372).

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

3498090640 is a wasteful number, since it uses less digits than its factorization.

3498090640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361408 (or 361391 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 3498090640 is about 59144.6585923023. The cubic root of 3498090640 is about 1518.0183432636.

The spelling of 3498090640 in words is "three billion, four hundred ninety-eight million, ninety thousand, six hundred forty".