40235217251352 has 128 divisors (see below), whose sum is σ = 102610120032000. Its totient is φ = 13143792960000.

The previous prime is 40235217251347. The next prime is 40235217251357. The reversal of 40235217251352 is 25315271253204.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40235217251347) and next prime (40235217251357).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235217251357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667763227 + ... + 667823477.

It is an arithmetic number, because the mean of its divisors is an integer number (801641562750).

Almost surely, 2^{40235217251352} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40235217251352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51305060016000).

40235217251352 is an abundant number, since it is smaller than the sum of its proper divisors (62374902780648).

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

40235217251352 is a wasteful number, since it uses less digits than its factorization.

40235217251352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61977 (or 61973 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 40235217251352 in words is "forty trillion, two hundred thirty-five billion, two hundred seventeen million, two hundred fifty-one thousand, three hundred fifty-two".