42653905 has 8 divisors (see below), whose sum is σ = 58496832. Its totient is φ = 29248368.

The previous prime is 42653887. The next prime is 42653911. The reversal of 42653905 is 50935624.

42653905 = T₂₀₀₅ + T₂₀₀₆ + ... + T₂₀₂₅.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42653905 - 2⁷ = 42653777 is a prime.

It is a super-2 number, since 2×42653905² = 3638711223498050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609307 + ... + 609376.

It is an arithmetic number, because the mean of its divisors is an integer number (7312104).

Almost surely, 2^42653905 is an apocalyptic number.

It is an amenable number.

42653905 is a deficient number, since it is larger than the sum of its proper divisors (15842927).

42653905 is a wasteful number, since it uses less digits than its factorization.

42653905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218695.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 42653905 is about 6530.9957127531. The cubic root of 42653905 is about 349.3973438496.

The spelling of 42653905 in words is "forty-two million, six hundred fifty-three thousand, nine hundred five".