42045455 has 8 divisors (see below), whose sum is σ = 52082304. Its totient is φ = 32551200.

The previous prime is 42045439. The next prime is 42045463. The reversal of 42045455 is 55454024.

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

It is not a de Polignac number, because 42045455 - 2⁴ = 42045439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135476 + ... + 135785.

It is an arithmetic number, because the mean of its divisors is an integer number (6510288).

Almost surely, 2^42045455 is an apocalyptic number.

42045455 is a deficient number, since it is larger than the sum of its proper divisors (10036849).

42045455 is a wasteful number, since it uses less digits than its factorization.

42045455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271297.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 42045455 is about 6484.2466794532. The cubic root of 42045455 is about 347.7280183182.

Adding to 42045455 its reverse (55454024), we get a palindrome (97499479).

The spelling of 42045455 in words is "forty-two million, forty-five thousand, four hundred fifty-five".