40426145081220 has 96 divisors (see below), whose sum is σ = 119254266593280. Its totient is φ = 10204047446400.

The previous prime is 40426145081197. The next prime is 40426145081243. The reversal of 40426145081220 is 2218054162404.

It is an interprime number because it is at equal distance from previous prime (40426145081197) and next prime (40426145081243).

It is a super-2 number, since 2×40426145081220² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14092522 + ... + 16716801.

It is an arithmetic number, because the mean of its divisors is an integer number (1242231943680).

Almost surely, 2^{40426145081220} is an apocalyptic number.

It is an amenable number.

40426145081220 is an abundant number, since it is smaller than the sum of its proper divisors (78828121512060).

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

40426145081220 is a wasteful number, since it uses less digits than its factorization.

40426145081220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30810505 (or 30810503 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The spelling of 40426145081220 in words is "forty trillion, four hundred twenty-six billion, one hundred forty-five million, eighty-one thousand, two hundred twenty".