438025540 has 48 divisors (see below), whose sum is σ = 931682304. Its totient is φ = 172972800.

The previous prime is 438025529. The next prime is 438025559. The reversal of 438025540 is 45520834.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 840480 + ... + 841000.

It is an arithmetic number, because the mean of its divisors is an integer number (19410048).

Almost surely, 2^438025540 is an apocalyptic number.

It is an amenable number.

438025540 is an abundant number, since it is smaller than the sum of its proper divisors (493656764).

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

438025540 is a wasteful number, since it uses less digits than its factorization.

438025540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 438025540 is about 20929.0597017640. The cubic root of 438025540 is about 759.4510925686.

The spelling of 438025540 in words is "four hundred thirty-eight million, twenty-five thousand, five hundred forty".