40721372624442 has 32 divisors (see below), whose sum is σ = 81499222264320. Its totient is φ = 13564378758960.

The previous prime is 40721372624423. The next prime is 40721372624461. The reversal of 40721372624442 is 24442627312704.

40721372624442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40721372624423) and next prime (40721372624461).

It is a super-2 number, since 2×40721372624442² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40721372624391 and 40721372624400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273843003 + ... + 273991665.

It is an arithmetic number, because the mean of its divisors is an integer number (2546850695760).

Almost surely, 2^{40721372624442} is an apocalyptic number.

40721372624442 is an abundant number, since it is smaller than the sum of its proper divisors (40777849639878).

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

40721372624442 is a wasteful number, since it uses less digits than its factorization.

40721372624442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180018.

The product of its (nonzero) digits is 3612672, while the sum is 48.

The spelling of 40721372624442 in words is "forty trillion, seven hundred twenty-one billion, three hundred seventy-two million, six hundred twenty-four thousand, four hundred forty-two".