42455470 has 32 divisors (see below), whose sum is σ = 80232768. Its totient is φ = 16144128.

The previous prime is 42455423. The next prime is 42455471. The reversal of 42455470 is 7455424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44842 + ... + 45778.

It is an arithmetic number, because the mean of its divisors is an integer number (2507274).

Almost surely, 2^42455470 is an apocalyptic number.

42455470 is a deficient number, since it is larger than the sum of its proper divisors (37777298).

42455470 is a wasteful number, since it uses less digits than its factorization.

42455470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 42455470 is about 6515.7862150319. The cubic root of 42455470 is about 348.8546779638.

The spelling of 42455470 in words is "forty-two million, four hundred fifty-five thousand, four hundred seventy".