42792909 has 8 divisors (see below), whose sum is σ = 57474240. Its totient is φ = 28320096.

The previous prime is 42792901. The next prime is 42792923. The reversal of 42792909 is 90929724.

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

It is not a de Polignac number, because 42792909 - 2³ = 42792901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42792901) 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, 51649 + ... + 52470.

It is an arithmetic number, because the mean of its divisors is an integer number (7184280).

Almost surely, 2^42792909 is an apocalyptic number.

It is an amenable number.

42792909 is a deficient number, since it is larger than the sum of its proper divisors (14681331).

42792909 is a wasteful number, since it uses less digits than its factorization.

42792909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104259.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 42792909 is about 6541.6289255812. The cubic root of 42792909 is about 349.7764804139.

The spelling of 42792909 in words is "forty-two million, seven hundred ninety-two thousand, nine hundred nine".