42653945 has 16 divisors (see below), whose sum is σ = 52550208. Its totient is φ = 33224640.

The previous prime is 42653939. The next prime is 42653953. The reversal of 42653945 is 54935624.

It is not a de Polignac number, because 42653945 - 2⁶ = 42653881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42653899 and 42653908.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31982 + ... + 33288.

It is an arithmetic number, because the mean of its divisors is an integer number (3284388).

Almost surely, 2^42653945 is an apocalyptic number.

It is an amenable number.

42653945 is a deficient number, since it is larger than the sum of its proper divisors (9896263).

42653945 is a wasteful number, since it uses less digits than its factorization.

42653945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480.

The product of its digits is 129600, while the sum is 38.

The square root of 42653945 is about 6530.9987750726. The cubic root of 42653945 is about 349.3974530689.

The spelling of 42653945 in words is "forty-two million, six hundred fifty-three thousand, nine hundred forty-five".