42045499 has 4 divisors (see below), whose sum is σ = 44258440. Its totient is φ = 39832560.

The previous prime is 42045491. The next prime is 42045511. The reversal of 42045499 is 99454024.

42045499 = T₁₁₈₆ + T₁₁₈₇ + ... + T₁₂₄₂.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42045499 - 2³ = 42045491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42045491) 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, 1106442 + ... + 1106479.

It is an arithmetic number, because the mean of its divisors is an integer number (11064610).

Almost surely, 2^42045499 is an apocalyptic number.

42045499 is a deficient number, since it is larger than the sum of its proper divisors (2212941).

42045499 is a wasteful number, since it uses less digits than its factorization.

42045499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212940.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 42045499 is about 6484.2500722905. The cubic root of 42045499 is about 347.7281396157.

The spelling of 42045499 in words is "forty-two million, forty-five thousand, four hundred ninety-nine".