64622642 has 16 divisors (see below), whose sum is σ = 113484672. Its totient is φ = 27019680.

The previous prime is 64622599. The next prime is 64622647. The reversal of 64622642 is 24622646.

It is a junction number, because it is equal to n+sod(n) for n = 64622599 and 64622608.

It is not an unprimeable number, because it can be changed into a prime (64622647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 55718 + ... + 56865.

It is an arithmetic number, because the mean of its divisors is an integer number (7092792).

Almost surely, 2^64622642 is an apocalyptic number.

64622642 is a deficient number, since it is larger than the sum of its proper divisors (48862030).

64622642 is a wasteful number, since it uses less digits than its factorization.

64622642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112633.

The product of its digits is 27648, while the sum is 32.

The square root of 64622642 is about 8038.8209334454. The cubic root of 64622642 is about 401.2929867928.

The spelling of 64622642 in words is "sixty-four million, six hundred twenty-two thousand, six hundred forty-two".