64260420 has 48 divisors (see below), whose sum is σ = 205634688. Its totient is φ = 14688000.

The previous prime is 64260401. The next prime is 64260439. The reversal of 64260420 is 2406246.

It is an interprime number because it is at equal distance from previous prime (64260401) and next prime (64260439).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76081 + ... + 76920.

It is an arithmetic number, because the mean of its divisors is an integer number (4284056).

Almost surely, 2^64260420 is an apocalyptic number.

64260420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64260420 is an abundant number, since it is smaller than the sum of its proper divisors (141374268).

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

64260420 is a wasteful number, since it uses less digits than its factorization.

64260420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153020 (or 153018 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64260420 is about 8016.2597263312. The cubic root of 64260420 is about 400.5418074470.

Subtracting from 64260420 its product of nonzero digits (2304), we obtain a triangular number (64258116 = T₁₁₃₃₆).

Adding to 64260420 its reverse (2406246), we get a palindrome (66666666).

The spelling of 64260420 in words is "sixty-four million, two hundred sixty thousand, four hundred twenty".