964989438 has 48 divisors (see below), whose sum is σ = 2247993360. Its totient is φ = 275353344.

The previous prime is 964989437. The next prime is 964989463. The reversal of 964989438 is 834989469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (964989437) 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, 295020 + ... + 298272.

It is an arithmetic number, because the mean of its divisors is an integer number (46833195).

Almost surely, 2^964989438 is an apocalyptic number.

964989438 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

964989438 is an abundant number, since it is smaller than the sum of its proper divisors (1283003922).

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

964989438 is a wasteful number, since it uses less digits than its factorization.

964989438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281 (or 4274 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 60.

The square root of 964989438 is about 31064.2791321479. The cubic root of 964989438 is about 988.1909069320.

The spelling of 964989438 in words is "nine hundred sixty-four million, nine hundred eighty-nine thousand, four hundred thirty-eight".