40145041398 has 32 divisors (see below), whose sum is σ = 100101922560. Its totient is φ = 10427283360.

The previous prime is 40145041397. The next prime is 40145041427. The reversal of 40145041398 is 89314054104.

It is a super-2 number, since 2×40145041398² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40145041397) 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, 43446553 + ... + 43447476.

It is an arithmetic number, because the mean of its divisors is an integer number (3128185080).

Almost surely, 2^40145041398 is an apocalyptic number.

40145041398 is an abundant number, since it is smaller than the sum of its proper divisors (59956881162).

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

40145041398 is a wasteful number, since it uses less digits than its factorization.

40145041398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86894052.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 40145041398 in words is "forty billion, one hundred forty-five million, forty-one thousand, three hundred ninety-eight".