438749880 has 32 divisors (see below), whose sum is σ = 1316250000. Its totient is φ = 116999936.

The previous prime is 438749867. The next prime is 438749893. The reversal of 438749880 is 88947834.

It is an interprime number because it is at equal distance from previous prime (438749867) and next prime (438749893).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1828005 + ... + 1828244.

Almost surely, 2^438749880 is an apocalyptic number.

438749880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

438749880 is an abundant number, since it is smaller than the sum of its proper divisors (877500120).

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

438749880 is a wasteful number, since it uses less digits than its factorization.

438749880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656263 (or 3656259 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 438749880 is about 20946.3572011937. The cubic root of 438749880 is about 759.8694835893.

The spelling of 438749880 in words is "four hundred thirty-eight million, seven hundred forty-nine thousand, eight hundred eighty".