42423615 has 64 divisors (see below), whose sum is σ = 84833280. Its totient is φ = 19958400.

The previous prime is 42423613. The next prime is 42423617. The reversal of 42423615 is 51632424.

42423615 is a `hidden beast` number, since 4 + 2 + 42 + 3 + 615 = 666.

It is an interprime number because it is at equal distance from previous prime (42423613) and next prime (42423617).

It is not a de Polignac number, because 42423615 - 2¹ = 42423613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39840 + ... + 40890.

It is an arithmetic number, because the mean of its divisors is an integer number (1325520).

Almost surely, 2^42423615 is an apocalyptic number.

42423615 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42423615 is a deficient number, since it is larger than the sum of its proper divisors (42409665).

42423615 is a wasteful number, since it uses less digits than its factorization.

42423615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101 (or 1095 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 42423615 is about 6513.3413084223. The cubic root of 42423615 is about 348.7674057679.

The spelling of 42423615 in words is "forty-two million, four hundred twenty-three thousand, six hundred fifteen".