42166954 has 8 divisors (see below), whose sum is σ = 63961380. Its totient is φ = 20846496.

The previous prime is 42166951. The next prime is 42166973. The reversal of 42166954 is 45966124.

It can be written as a sum of positive squares in 2 ways, for example, as 41254929 + 912025 = 6423^2 + 955^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42166951) 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, 118269 + ... + 118624.

Almost surely, 2^42166954 is an apocalyptic number.

42166954 is a deficient number, since it is larger than the sum of its proper divisors (21794426).

42166954 is a wasteful number, since it uses less digits than its factorization.

42166954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236984.

The product of its digits is 51840, while the sum is 37.

The square root of 42166954 is about 6493.6087039488. The cubic root of 42166954 is about 348.0626401091.

The spelling of 42166954 in words is "forty-two million, one hundred sixty-six thousand, nine hundred fifty-four".