45509686 has 8 divisors (see below), whose sum is σ = 71232624. Its totient is φ = 21765480.

The previous prime is 45509657. The next prime is 45509687. The reversal of 45509686 is 68690554.

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

It is a super-2 number, since 2×45509686² = 4142263039637192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45509687) 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, 494625 + ... + 494716.

It is an arithmetic number, because the mean of its divisors is an integer number (8904078).

Almost surely, 2^45509686 is an apocalyptic number.

45509686 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

45509686 is a deficient number, since it is larger than the sum of its proper divisors (25722938).

45509686 is a wasteful number, since it uses less digits than its factorization.

45509686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989366.

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 45509686 is about 6746.0867174978. The cubic root of 45509686 is about 357.0271800453.

The spelling of 45509686 in words is "forty-five million, five hundred nine thousand, six hundred eighty-six".