42654644 has 6 divisors (see below), whose sum is σ = 74645634. Its totient is φ = 21327320.

The previous prime is 42654617. The next prime is 42654653. The reversal of 42654644 is 44645624.

It can be written as a sum of positive squares in only one way, i.e., 39187600 + 3467044 = 6260^2 + 1862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331827 + ... + 5331834.

It is an arithmetic number, because the mean of its divisors is an integer number (12440939).

Almost surely, 2^42654644 is an apocalyptic number.

It is an amenable number.

42654644 is a deficient number, since it is larger than the sum of its proper divisors (31990990).

42654644 is a wasteful number, since it uses less digits than its factorization.

42654644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10663665 (or 10663663 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

The square root of 42654644 is about 6531.0522888735. The cubic root of 42654644 is about 349.3993616652.

The spelling of 42654644 in words is "forty-two million, six hundred fifty-four thousand, six hundred forty-four".