45721198 has 8 divisors (see below), whose sum is σ = 68941440. Its totient is φ = 22740720.

The previous prime is 45721189. The next prime is 45721199. The reversal of 45721198 is 89112754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45721199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59463 + ... + 60226.

It is an arithmetic number, because the mean of its divisors is an integer number (8617680).

Almost surely, 2^45721198 is an apocalyptic number.

45721198 is a deficient number, since it is larger than the sum of its proper divisors (23220242).

45721198 is a wasteful number, since it uses less digits than its factorization.

45721198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119882.

The product of its digits is 20160, while the sum is 37.

The square root of 45721198 is about 6761.7451889287. The cubic root of 45721198 is about 357.5794349706.

The spelling of 45721198 in words is "forty-five million, seven hundred twenty-one thousand, one hundred ninety-eight".