42902499 has 16 divisors (see below), whose sum is σ = 59754240. Its totient is φ = 27352800.

The previous prime is 42902471. The next prime is 42902501. The reversal of 42902499 is 99420924.

It is a Cunningham number, because it is equal to 6550²-1.

It is not a de Polignac number, because 42902499 - 2⁸ = 42902243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42902449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3274 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (3734640).

Almost surely, 2^42902499 is an apocalyptic number.

42902499 is a deficient number, since it is larger than the sum of its proper divisors (16851741).

42902499 is a wasteful number, since it uses less digits than its factorization.

42902499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6650.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 42902499 is about 6549.9999236641. Note that the first 4 decimals coincide. The cubic root of 42902499 is about 350.0748112191.

The spelling of 42902499 in words is "forty-two million, nine hundred two thousand, four hundred ninety-nine".