3506432644 has 48 divisors (see below), whose sum is σ = 7215578496. Its totient is φ = 1469894400.

The previous prime is 3506432557. The next prime is 3506432647. The reversal of 3506432644 is 4462346053.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3506432647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862264 + ... + 866320.

It is an arithmetic number, because the mean of its divisors is an integer number (150324552).

Almost surely, 2^3506432644 is an apocalyptic number.

It is an amenable number.

3506432644 is an abundant number, since it is smaller than the sum of its proper divisors (3709145852).

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

3506432644 is a wasteful number, since it uses less digits than its factorization.

3506432644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5596 (or 5594 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 37.

The square root of 3506432644 is about 59215.1386386961. The cubic root of 3506432644 is about 1519.2240736186.

Adding to 3506432644 its reverse (4462346053), we get a palindrome (7968778697).

The spelling of 3506432644 in words is "three billion, five hundred six million, four hundred thirty-two thousand, six hundred forty-four".