45378538 has 8 divisors (see below), whose sum is σ = 68231520. Its totient is φ = 22634700.

The previous prime is 45378527. The next prime is 45378577. The reversal of 45378538 is 83587354.

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

It is a super-2 number, since 2×45378538² = 4118423422034888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45378494 and 45378503.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26238 + ... + 27913.

It is an arithmetic number, because the mean of its divisors is an integer number (8528940).

Almost surely, 2^45378538 is an apocalyptic number.

45378538 is a deficient number, since it is larger than the sum of its proper divisors (22852982).

45378538 is a wasteful number, since it uses less digits than its factorization.

45378538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54572.

The product of its digits is 403200, while the sum is 43.

The square root of 45378538 is about 6736.3594025260. The cubic root of 45378538 is about 356.6838945105.

The spelling of 45378538 in words is "forty-five million, three hundred seventy-eight thousand, five hundred thirty-eight".