3540215444 has 12 divisors (see below), whose sum is σ = 6220061568. Its totient is φ = 1763055000.

The previous prime is 3540215443. The next prime is 3540215449. The reversal of 3540215444 is 4445120453.

It is a super-2 number, since 2×3540215444² = 25066250779872234272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3540215444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540215443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1762052 + ... + 1764059.

It is an arithmetic number, because the mean of its divisors is an integer number (518338464).

Almost surely, 2^3540215444 is an apocalyptic number.

It is an amenable number.

3540215444 is a deficient number, since it is larger than the sum of its proper divisors (2679846124).

3540215444 is a wasteful number, since it uses less digits than its factorization.

3540215444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3526366 (or 3526364 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

The square root of 3540215444 is about 59499.7096127368. The cubic root of 3540215444 is about 1524.0874869119.

Adding to 3540215444 its reverse (4445120453), we get a palindrome (7985335897).

The spelling of 3540215444 in words is "three billion, five hundred forty million, two hundred fifteen thousand, four hundred forty-four".