438045051492 has 96 divisors (see below), whose sum is σ = 1173025136640. Its totient is φ = 141218290080.

The previous prime is 438045051443. The next prime is 438045051497. The reversal of 438045051492 is 294150540834.

438045051492 is a `hidden beast` number, since 4 + 3 + 8 + 0 + 45 + 0 + 514 + 92 = 666.

It is not an unprimeable number, because it can be changed into a prime (438045051497) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5541873 + ... + 5620359.

It is an arithmetic number, because the mean of its divisors is an integer number (12219011840).

Almost surely, 2^438045051492 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 438045051492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586512568320).

438045051492 is an abundant number, since it is smaller than the sum of its proper divisors (734980085148).

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

438045051492 is a wasteful number, since it uses less digits than its factorization.

438045051492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80198 (or 80190 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 438045051492 in words is "four hundred thirty-eight billion, forty-five million, fifty-one thousand, four hundred ninety-two".