45049072 has 20 divisors (see below), whose sum is σ = 87599800. Its totient is φ = 22442688.

The previous prime is 45049063. The next prime is 45049073. The reversal of 45049072 is 27094054.

It is a super-2 number, since 2×45049072² = 4058837776122368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45049073) 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, 447 + ... + 9502.

It is an arithmetic number, because the mean of its divisors is an integer number (4379990).

Almost surely, 2^45049072 is an apocalyptic number.

It is an amenable number.

45049072 is a deficient number, since it is larger than the sum of its proper divisors (42550728).

45049072 is a wasteful number, since it uses less digits than its factorization.

45049072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10240 (or 10234 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 45049072 is about 6711.8605468231. The cubic root of 45049072 is about 355.8185752346.

The spelling of 45049072 in words is "forty-five million, forty-nine thousand, seventy-two".