42246405 has 24 divisors (see below), whose sum is σ = 77082720. Its totient is φ = 21345120.

The previous prime is 42246403. The next prime is 42246433. The reversal of 42246405 is 50464224.

It is not a de Polignac number, because 42246405 - 2¹ = 42246403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42246403) 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, 23851 + ... + 25560.

It is an arithmetic number, because the mean of its divisors is an integer number (3211780).

Almost surely, 2^42246405 is an apocalyptic number.

42246405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42246405 is a deficient number, since it is larger than the sum of its proper divisors (34836315).

42246405 is a wasteful number, since it uses less digits than its factorization.

42246405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49441 (or 49438 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 42246405 is about 6499.7234556556. The cubic root of 42246405 is about 348.2811095648.

The spelling of 42246405 in words is "forty-two million, two hundred forty-six thousand, four hundred five".