438655546 has 48 divisors (see below), whose sum is σ = 815054400. Its totient is φ = 176033088.

The previous prime is 438655541. The next prime is 438655561. The reversal of 438655546 is 645556834.

It is a junction number, because it is equal to n+sod(n) for n = 438655496 and 438655505.

It is not an unprimeable number, because it can be changed into a prime (438655541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164395 + ... + 167041.

It is an arithmetic number, because the mean of its divisors is an integer number (16980300).

Almost surely, 2^438655546 is an apocalyptic number.

438655546 is a deficient number, since it is larger than the sum of its proper divisors (376398854).

438655546 is a wasteful number, since it uses less digits than its factorization.

438655546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771 (or 2764 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The square root of 438655546 is about 20944.1052804841. The cubic root of 438655546 is about 759.8150207703.

The spelling of 438655546 in words is "four hundred thirty-eight million, six hundred fifty-five thousand, five hundred forty-six".