45729019 has 8 divisors (see below), whose sum is σ = 52528608. Its totient is φ = 38996160.

The previous prime is 45729011. The next prime is 45729023. The reversal of 45729019 is 91092754.

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

It is not a de Polignac number, because 45729019 - 2³ = 45729011 is a prime.

It is a super-2 number, since 2×45729019² = 4182286357404722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45729011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15202 + ... + 17959.

It is an arithmetic number, because the mean of its divisors is an integer number (6566076).

Almost surely, 2^45729019 is an apocalyptic number.

45729019 is a deficient number, since it is larger than the sum of its proper divisors (6799589).

45729019 is a wasteful number, since it uses less digits than its factorization.

45729019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33365.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 45729019 is about 6762.3234912270. The cubic root of 45729019 is about 357.5998228099.

The spelling of 45729019 in words is "forty-five million, seven hundred twenty-nine thousand, nineteen".