3651620344 has 32 divisors (see below), whose sum is σ = 6884951040. Its totient is φ = 1815660000.

The previous prime is 3651620327. The next prime is 3651620353. The reversal of 3651620344 is 4430261563.

It is a super-2 number, since 2×3651620344² = 26668662273429356672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1578949 + ... + 1581259.

It is an arithmetic number, because the mean of its divisors is an integer number (215154720).

Almost surely, 2^3651620344 is an apocalyptic number.

It is an amenable number.

3651620344 is a deficient number, since it is larger than the sum of its proper divisors (3233330696).

3651620344 is a wasteful number, since it uses less digits than its factorization.

3651620344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331 (or 3327 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 3651620344 is about 60428.6384423809. The cubic root of 3651620344 is about 1539.9095274898.

The spelling of 3651620344 in words is "three billion, six hundred fifty-one million, six hundred twenty thousand, three hundred forty-four".