45002042 has 4 divisors (see below), whose sum is σ = 67503066. Its totient is φ = 22501020.

The previous prime is 45002033. The next prime is 45002057. The reversal of 45002042 is 24020054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24020054 = 2 ⋅12010027.

It can be written as a sum of positive squares in only one way, i.e., 41357761 + 3644281 = 6431^2 + 1909^2 .

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 45002042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11250509 + ... + 11250512.

Almost surely, 2^45002042 is an apocalyptic number.

45002042 is a deficient number, since it is larger than the sum of its proper divisors (22501024).

45002042 is a wasteful number, since it uses less digits than its factorization.

45002042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22501023.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 45002042 is about 6708.3561324664. The cubic root of 45002042 is about 355.6947104981.

Adding to 45002042 its reverse (24020054), we get a palindrome (69022096).

The spelling of 45002042 in words is "forty-five million, two thousand, forty-two".