64267538 has 24 divisors (see below), whose sum is σ = 105147120. Its totient is φ = 29378160.

The previous prime is 64267529. The next prime is 64267547. The reversal of 64267538 is 83576246.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64267529) and next prime (64267547).

It is a junction number, because it is equal to n+sod(n) for n = 64267495 and 64267504.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30953 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (4381130).

Almost surely, 2^64267538 is an apocalyptic number.

64267538 is a deficient number, since it is larger than the sum of its proper divisors (40879582).

64267538 is a wasteful number, since it uses less digits than its factorization.

64267538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090 (or 2061 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 64267538 is about 8016.7036866782. The cubic root of 64267538 is about 400.5565959764.

The spelling of 64267538 in words is "sixty-four million, two hundred sixty-seven thousand, five hundred thirty-eight".