1438654080 has 64 divisors (see below), whose sum is σ = 4585716000. Its totient is φ = 383640576.

The previous prime is 1438654057. The next prime is 1438654081. The reversal of 1438654080 is 804568341.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (1438654081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 372730 + ... + 376569.

Almost surely, 2^1438654080 is an apocalyptic number.

1438654080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1438654080 is an abundant number, since it is smaller than the sum of its proper divisors (3147061920).

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

1438654080 is an equidigital number, since it uses as much as digits as its factorization.

1438654080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749321 (or 749309 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1438654080 is about 37929.5937231076. The cubic root of 1438654080 is about 1128.8913029849.

The spelling of 1438654080 in words is "one billion, four hundred thirty-eight million, six hundred fifty-four thousand, eighty".