42278954 has 8 divisors (see below), whose sum is σ = 64965348. Its totient is φ = 20623840.

The previous prime is 42278953. The next prime is 42278963. The reversal of 42278954 is 45987224.

It can be written as a sum of positive squares in 2 ways, for example, as 42055225 + 223729 = 6485^2 + 473^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (42278953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257717 + ... + 257880.

Almost surely, 2^42278954 is an apocalyptic number.

42278954 is a deficient number, since it is larger than the sum of its proper divisors (22686394).

42278954 is a wasteful number, since it uses less digits than its factorization.

42278954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515640.

The product of its digits is 161280, while the sum is 41.

The square root of 42278954 is about 6502.2268493186. The cubic root of 42278954 is about 348.3705317040.

The spelling of 42278954 in words is "forty-two million, two hundred seventy-eight thousand, nine hundred fifty-four".