45187738 has 8 divisors (see below), whose sum is σ = 71349120. Its totient is φ = 21404700.

The previous prime is 45187733. The next prime is 45187759. The reversal of 45187738 is 83778154.

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

It is a junction number, because it is equal to n+sod(n) for n = 45187694 and 45187703.

It is not an unprimeable number, because it can be changed into a prime (45187733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594538 + ... + 594613.

It is an arithmetic number, because the mean of its divisors is an integer number (8918640).

Almost surely, 2^45187738 is an apocalyptic number.

45187738 is a deficient number, since it is larger than the sum of its proper divisors (26161382).

45187738 is a wasteful number, since it uses less digits than its factorization.

45187738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189172.

The product of its digits is 188160, while the sum is 43.

The square root of 45187738 is about 6722.1825324815. The cubic root of 45187738 is about 356.1832841929.

The spelling of 45187738 in words is "forty-five million, one hundred eighty-seven thousand, seven hundred thirty-eight".