64237236 has 72 divisors (see below), whose sum is σ = 176160096. Its totient is φ = 18164160.

The previous prime is 64237231. The next prime is 64237241. The reversal of 64237236 is 63273246.

It is an interprime number because it is at equal distance from previous prime (64237231) and next prime (64237241).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 64237197 and 64237206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64237231) 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, 62406 + ... + 63426.

It is an arithmetic number, because the mean of its divisors is an integer number (2446668).

Almost surely, 2^64237236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64237236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88080048).

64237236 is an abundant number, since it is smaller than the sum of its proper divisors (111922860).

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

64237236 is a wasteful number, since it uses less digits than its factorization.

64237236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1140 counting only the distinct ones).

The product of its digits is 36288, while the sum is 33.

The square root of 64237236 is about 8014.8135349489. The cubic root of 64237236 is about 400.4936322341.

The spelling of 64237236 in words is "sixty-four million, two hundred thirty-seven thousand, two hundred thirty-six".