45102442 has 64 divisors (see below), whose sum is σ = 88704000. Its totient is φ = 17040240.

The previous prime is 45102413. The next prime is 45102461. The reversal of 45102442 is 24420154.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324409 + ... + 324547.

It is an arithmetic number, because the mean of its divisors is an integer number (1386000).

Almost surely, 2^45102442 is an apocalyptic number.

45102442 is a deficient number, since it is larger than the sum of its proper divisors (43601558).

45102442 is a wasteful number, since it uses less digits than its factorization.

45102442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216 (or 202 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45102442 is about 6715.8351677211. The cubic root of 45102442 is about 355.9590334966.

Adding to 45102442 its reverse (24420154), we get a palindrome (69522596).

The spelling of 45102442 in words is "forty-five million, one hundred two thousand, four hundred forty-two".