42100465 has 24 divisors (see below), whose sum is σ = 57653568. Its totient is φ = 29267040.

The previous prime is 42100463. The next prime is 42100477. The reversal of 42100465 is 56400124.

It is not a de Polignac number, because 42100465 - 2¹ = 42100463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42100463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28372 + ... + 29818.

It is an arithmetic number, because the mean of its divisors is an integer number (2402232).

Almost surely, 2^42100465 is an apocalyptic number.

It is an amenable number.

42100465 is a deficient number, since it is larger than the sum of its proper divisors (15553103).

42100465 is a wasteful number, since it uses less digits than its factorization.

42100465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 42100465 is about 6488.4871118004. The cubic root of 42100465 is about 347.8796017423.

Adding to 42100465 its reverse (56400124), we get a palindrome (98500589).

The spelling of 42100465 in words is "forty-two million, one hundred thousand, four hundred sixty-five".