45142678 has 16 divisors (see below), whose sum is σ = 77598720. Its totient is φ = 19294056.

The previous prime is 45142673. The next prime is 45142703. The reversal of 45142678 is 87624154.

It is a super-2 number, since 2×45142678² = 4075722754023368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45142673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153 + ... + 9571.

It is an arithmetic number, because the mean of its divisors is an integer number (4849920).

Almost surely, 2^45142678 is an apocalyptic number.

45142678 is a deficient number, since it is larger than the sum of its proper divisors (32456042).

45142678 is a wasteful number, since it uses less digits than its factorization.

45142678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

The product of its digits is 53760, while the sum is 37.

The square root of 45142678 is about 6718.8301064992. The cubic root of 45142678 is about 356.0648526803.

The spelling of 45142678 in words is "forty-five million, one hundred forty-two thousand, six hundred seventy-eight".