42954665 has 16 divisors (see below), whose sum is σ = 58777488. Its totient is φ = 29853696.

The previous prime is 42954661. The next prime is 42954673. The reversal of 42954665 is 56645924.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2301289 + 40653376 = 1517^2 + 6376^2 .

It is a cyclic number.

It is not a de Polignac number, because 42954665 - 2² = 42954661 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42954661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18332 + ... + 20541.

It is an arithmetic number, because the mean of its divisors is an integer number (3673593).

Almost surely, 2^42954665 is an apocalyptic number.

It is an amenable number.

42954665 is a deficient number, since it is larger than the sum of its proper divisors (15822823).

42954665 is a wasteful number, since it uses less digits than its factorization.

42954665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38908.

The product of its digits is 259200, while the sum is 41.

The square root of 42954665 is about 6553.9808513605. The cubic root of 42954665 is about 350.2166413868.

The spelling of 42954665 in words is "forty-two million, nine hundred fifty-four thousand, six hundred sixty-five".