3540242252440 has 32 divisors (see below), whose sum is σ = 7968503180880. Its totient is φ = 1415571014272.

The previous prime is 3540242252429. The next prime is 3540242252501. The reversal of 3540242252440 is 442522420453.

It is a happy number.

It is a super-2 number, since 2×3540242252440² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3540242252440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16324894 + ... + 16540333.

Almost surely, 2^{3540242252440} is an apocalyptic number.

It is an amenable number.

3540242252440 is an abundant number, since it is smaller than the sum of its proper divisors (4428260928440).

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

3540242252440 is a wasteful number, since it uses less digits than its factorization.

3540242252440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32867931 (or 32867927 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 37.

Adding to 3540242252440 its reverse (442522420453), we get a palindrome (3982764672893).

The spelling of 3540242252440 in words is "three trillion, five hundred forty billion, two hundred forty-two million, two hundred fifty-two thousand, four hundred forty".