40221340242040 has 16 divisors (see below), whose sum is σ = 90498015544680. Its totient is φ = 16088536096800.

The previous prime is 40221340242011. The next prime is 40221340242077. The reversal of 40221340242040 is 4024204312204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502766752986 + ... + 502766753065.

Almost surely, 2^{40221340242040} is an apocalyptic number.

40221340242040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40221340242040 is an abundant number, since it is smaller than the sum of its proper divisors (50276675302640).

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

40221340242040 is a wasteful number, since it uses less digits than its factorization.

40221340242040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005533506062 (or 1005533506058 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40221340242040 its reverse (4024204312204), we get a palindrome (44245544554244).

The spelling of 40221340242040 in words is "forty trillion, two hundred twenty-one billion, three hundred forty million, two hundred forty-two thousand, forty".