438076764 has 18 divisors (see below), whose sum is σ = 1107360800. Its totient is φ = 146025576.

The previous prime is 438076763. The next prime is 438076843. The reversal of 438076764 is 467670834.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×438076764² = 383822502313423392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438076763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6084364 + ... + 6084435.

Almost surely, 2^438076764 is an apocalyptic number.

It is an amenable number.

438076764 is an abundant number, since it is smaller than the sum of its proper divisors (669284036).

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

438076764 is a wasteful number, since it uses less digits than its factorization.

438076764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12168809 (or 12168804 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The square root of 438076764 is about 20930.2834190080. The cubic root of 438076764 is about 759.4806955657.

The spelling of 438076764 in words is "four hundred thirty-eight million, seventy-six thousand, seven hundred sixty-four".