45040402 has 16 divisors (see below), whose sum is σ = 74116224. Its totient is φ = 20358000.

The previous prime is 45040397. The next prime is 45040403. The reversal of 45040402 is 20404054.

It is a self number, because there is not a number n which added to its sum of digits gives 45040402.

It is not an unprimeable number, because it can be changed into a prime (45040403) 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, 1674 + ... + 9637.

It is an arithmetic number, because the mean of its divisors is an integer number (4632264).

Almost surely, 2^45040402 is an apocalyptic number.

45040402 is a deficient number, since it is larger than the sum of its proper divisors (29075822).

45040402 is a wasteful number, since it uses less digits than its factorization.

45040402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 45040402 is about 6711.2146441609. The cubic root of 45040402 is about 355.7957472026.

Adding to 45040402 its reverse (20404054), we get a palindrome (65444456).

The spelling of 45040402 in words is "forty-five million, forty thousand, four hundred two".