45099842 has 4 divisors (see below), whose sum is σ = 67649766. Its totient is φ = 22549920.

The previous prime is 45099841. The next prime is 45099851. The reversal of 45099842 is 24899054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33884041 + 11215801 = 5821^2 + 3349^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45099842.

It is not an unprimeable number, because it can be changed into a prime (45099841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11274959 + ... + 11274962.

Almost surely, 2^45099842 is an apocalyptic number.

45099842 is a deficient number, since it is larger than the sum of its proper divisors (22549924).

45099842 is a wasteful number, since it uses less digits than its factorization.

45099842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22549923.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 45099842 is about 6715.6415925807. The cubic root of 45099842 is about 355.9521934289.

The spelling of 45099842 in words is "forty-five million, ninety-nine thousand, eight hundred forty-two".