42162399 has 12 divisors (see below), whose sum is σ = 61461400. Its totient is φ = 27849744.

The previous prime is 42162389. The next prime is 42162409. The reversal of 42162399 is 99326124.

42162399 is a `hidden beast` number, since 4 + 21 + 623 + 9 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (42162389) and next prime (42162409).

It is not a de Polignac number, because 42162399 - 2⁴ = 42162383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42162359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20509 + ... + 22470.

Almost surely, 2^42162399 is an apocalyptic number.

42162399 is a deficient number, since it is larger than the sum of its proper divisors (19299001).

42162399 is a wasteful number, since it uses less digits than its factorization.

42162399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43094 (or 43091 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 42162399 is about 6493.2579649972. The cubic root of 42162399 is about 348.0501067367.

The spelling of 42162399 in words is "forty-two million, one hundred sixty-two thousand, three hundred ninety-nine".