45022840 has 16 divisors (see below), whose sum is σ = 101301480. Its totient is φ = 18009120.

The previous prime is 45022829. The next prime is 45022853. The reversal of 45022840 is 4822054.

It is a happy number.

It is a super-2 number, since 2×45022840² = 4054112243331200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562746 + ... + 562825.

Almost surely, 2^45022840 is an apocalyptic number.

45022840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45022840 is an abundant number, since it is smaller than the sum of its proper divisors (56278640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45022840 is a wasteful number, since it uses less digits than its factorization.

45022840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125582 (or 1125578 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 45022840 is about 6709.9061096263. The cubic root of 45022840 is about 355.7494976360.

Adding to 45022840 its reverse (4822054), we get a palindrome (49844894).

The spelling of 45022840 in words is "forty-five million, twenty-two thousand, eight hundred forty".