42450657 has 8 divisors (see below), whose sum is σ = 56674080. Its totient is φ = 28263840.

The previous prime is 42450643. The next prime is 42450659. The reversal of 42450657 is 75605424.

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

It is not a de Polignac number, because 42450657 - 2⁶ = 42450593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42450659) 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, 6319 + ... + 11172.

It is an arithmetic number, because the mean of its divisors is an integer number (7084260).

Almost surely, 2^42450657 is an apocalyptic number.

It is an amenable number.

42450657 is a deficient number, since it is larger than the sum of its proper divisors (14223423).

42450657 is a wasteful number, since it uses less digits than its factorization.

42450657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18303.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 42450657 is about 6515.4168707766. The cubic root of 42450657 is about 348.8414947311.

The spelling of 42450657 in words is "forty-two million, four hundred fifty thousand, six hundred fifty-seven".