45501938 has 8 divisors (see below), whose sum is σ = 68327388. Its totient is φ = 22726144.

The previous prime is 45501919. The next prime is 45501943. The reversal of 45501938 is 83910554.

It can be written as a sum of positive squares in 2 ways, for example, as 42601729 + 2900209 = 6527^2 + 1703^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45501898 and 45501907.

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, 10031 + ... + 13842.

Almost surely, 2^45501938 is an apocalyptic number.

45501938 is a deficient number, since it is larger than the sum of its proper divisors (22825450).

45501938 is a wasteful number, since it uses less digits than its factorization.

45501938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24828.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 45501938 is about 6745.5124342039. The cubic root of 45501938 is about 357.0069176658.

It can be divided in two parts, 4550 and 1938, that multiplied together give a triangular number (8817900 = T₄₁₉₉).

The spelling of 45501938 in words is "forty-five million, five hundred one thousand, nine hundred thirty-eight".