45012422 has 32 divisors (see below), whose sum is σ = 83899200. Its totient is φ = 17635968.

The previous prime is 45012377. The next prime is 45012427. The reversal of 45012422 is 22421054.

It is a happy number.

It is a super-2 number, since 2×45012422² = 4052236268612168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45012394 and 45012403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45012427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18704 + ... + 20972.

It is an arithmetic number, because the mean of its divisors is an integer number (2621850).

Almost surely, 2^45012422 is an apocalyptic number.

45012422 is a deficient number, since it is larger than the sum of its proper divisors (38886778).

45012422 is a wasteful number, since it uses less digits than its factorization.

45012422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 45012422 is about 6709.1297498260. The cubic root of 45012422 is about 355.7220561258.

Adding to 45012422 its reverse (22421054), we get a palindrome (67433476).

The spelling of 45012422 in words is "forty-five million, twelve thousand, four hundred twenty-two".