3540401244 has 48 divisors (see below), whose sum is σ = 9187306240. Its totient is φ = 1179042480.

The previous prime is 3540401243. The next prime is 3540401251. The reversal of 3540401244 is 4421040453.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540401243) 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, 106689 + ... + 135879.

Almost surely, 2^3540401244 is an apocalyptic number.

It is an amenable number.

3540401244 is an abundant number, since it is smaller than the sum of its proper divisors (5646904996).

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

3540401244 is a wasteful number, since it uses less digits than its factorization.

3540401244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30327 (or 30319 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 3540401244 is about 59501.2709444092. The cubic root of 3540401244 is about 1524.1141491782.

Adding to 3540401244 its reverse (4421040453), we get a palindrome (7961441697).

The spelling of 3540401244 in words is "three billion, five hundred forty million, four hundred one thousand, two hundred forty-four".