64211472 has 60 divisors (see below), whose sum is σ = 193531884. Its totient is φ = 19756800.

The previous prime is 64211443. The next prime is 64211479. The reversal of 64211472 is 27411246.

64211472 is a `hidden beast` number, since 642 + 1 + 14 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7420176 + 56791296 = 2724^2 + 7536^2 .

It is a super-2 number, since 2×64211472² = 8246226272813568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64211479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15279 + ... + 19022.

Almost surely, 2^64211472 is an apocalyptic number.

It is an amenable number.

64211472 is an abundant number, since it is smaller than the sum of its proper divisors (129320412).

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

64211472 is a wasteful number, since it uses less digits than its factorization.

64211472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34328 (or 34319 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 64211472 is about 8013.2060999328. The cubic root of 64211472 is about 400.4400823080.

The spelling of 64211472 in words is "sixty-four million, two hundred eleven thousand, four hundred seventy-two".