42620895 has 48 divisors (see below), whose sum is σ = 78873600. Its totient is φ = 21228480.

The previous prime is 42620891. The next prime is 42620899. The reversal of 42620895 is 59802624.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42620891) and next prime (42620899).

It is not a de Polignac number, because 42620895 - 2² = 42620891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42620891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67230 + ... + 67860.

It is an arithmetic number, because the mean of its divisors is an integer number (1643200).

Almost surely, 2^42620895 is an apocalyptic number.

42620895 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42620895 is a deficient number, since it is larger than the sum of its proper divisors (36252705).

42620895 is a wasteful number, since it uses less digits than its factorization.

42620895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 42620895 is about 6528.4680438829. The cubic root of 42620895 is about 349.3071873297.

It can be divided in two parts, 426 and 20895, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 42620895 in words is "forty-two million, six hundred twenty thousand, eight hundred ninety-five".