42432897 has 8 divisors (see below), whose sum is σ = 60929344. Its totient is φ = 26112528.

The previous prime is 42432889. The next prime is 42432899. The reversal of 42432897 is 79823424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42432897 - 2³ = 42432889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1088023 = 42432897 / (4 + 2 + 4 + 3 + 2 + 8 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42432899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543973 + ... + 544050.

It is an arithmetic number, because the mean of its divisors is an integer number (7616168).

Almost surely, 2^42432897 is an apocalyptic number.

It is an amenable number.

42432897 is a deficient number, since it is larger than the sum of its proper divisors (18496447).

42432897 is a wasteful number, since it uses less digits than its factorization.

42432897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088039.

The product of its digits is 96768, while the sum is 39.

The square root of 42432897 is about 6514.0538069623. The cubic root of 42432897 is about 348.7928398961.

It can be divided in two parts, 4243 and 2897, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 42432897 in words is "forty-two million, four hundred thirty-two thousand, eight hundred ninety-seven".