42481954 has 4 divisors (see below), whose sum is σ = 63722934. Its totient is φ = 21240976.

The previous prime is 42481951. The next prime is 42481969. The reversal of 42481954 is 45918424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 27092025 + 15389929 = 5205^2 + 3923^2 .

It is not an unprimeable number, because it can be changed into a prime (42481951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10620487 + ... + 10620490.

Almost surely, 2^42481954 is an apocalyptic number.

42481954 is a deficient number, since it is larger than the sum of its proper divisors (21240980).

42481954 is a wasteful number, since it uses less digits than its factorization.

42481954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21240979.

The product of its digits is 46080, while the sum is 37.

The square root of 42481954 is about 6517.8181932300. The cubic root of 42481954 is about 348.9272021625.

The spelling of 42481954 in words is "forty-two million, four hundred eighty-one thousand, nine hundred fifty-four".