45432769 has 4 divisors (see below), whose sum is σ = 45446320. Its totient is φ = 45419220.

The previous prime is 45432733. The next prime is 45432787. The reversal of 45432769 is 96723454.

45432769 = T₅₅₀₂ + T₅₅₀₃ + T₅₅₀₄.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 45432769 - 2⁷ = 45432641 is a prime.

It is a super-2 number, since 2×45432769² = 4128272998014722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45432799) 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, 2362 + ... + 9820.

It is an arithmetic number, because the mean of its divisors is an integer number (11361580).

Almost surely, 2^45432769 is an apocalyptic number.

45432769 is the 5504-th centered triangular number.

It is an amenable number.

45432769 is a deficient number, since it is larger than the sum of its proper divisors (13551).

45432769 is an equidigital number, since it uses as much as digits as its factorization.

45432769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13550.

The product of its digits is 181440, while the sum is 40.

The square root of 45432769 is about 6740.3834460660. The cubic root of 45432769 is about 356.8259265858.

The spelling of 45432769 in words is "forty-five million, four hundred thirty-two thousand, seven hundred sixty-nine".