438438948 has 12 divisors (see below), whose sum is σ = 1023024240. Its totient is φ = 146146312.

The previous prime is 438438947. The next prime is 438438977. The reversal of 438438948 is 849834834.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×438438948² = 384457422246693408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 438438948.

It is not an unprimeable number, because it can be changed into a prime (438438947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18268278 + ... + 18268301.

It is an arithmetic number, because the mean of its divisors is an integer number (85252020).

Almost surely, 2^438438948 is an apocalyptic number.

It is an amenable number.

438438948 is an abundant number, since it is smaller than the sum of its proper divisors (584585292).

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

438438948 is a wasteful number, since it uses less digits than its factorization.

438438948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36536586 (or 36536584 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 51.

The square root of 438438948 is about 20938.9337837436. The cubic root of 438438948 is about 759.6899404649.

The spelling of 438438948 in words is "four hundred thirty-eight million, four hundred thirty-eight thousand, nine hundred forty-eight".