40145174320 has 40 divisors (see below), whose sum is σ = 93539209536. Its totient is φ = 16023372288.

The previous prime is 40145174261. The next prime is 40145174339. The reversal of 40145174320 is 2347154104.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×40145174320² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504877 + ... + 578956.

Almost surely, 2^40145174320 is an apocalyptic number.

40145174320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40145174320 is an abundant number, since it is smaller than the sum of its proper divisors (53394035216).

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

40145174320 is a wasteful number, since it uses less digits than its factorization.

40145174320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084309 (or 1084303 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 40145174320 in words is "forty billion, one hundred forty-five million, one hundred seventy-four thousand, three hundred twenty".