42992015 has 8 divisors (see below), whose sum is σ = 56280528. Its totient is φ = 31266880.

The previous prime is 42991987. The next prime is 42992021. The reversal of 42992015 is 51029924.

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

It is not a de Polignac number, because 42992015 - 2¹⁰ = 42990991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390782 + ... + 390891.

It is an arithmetic number, because the mean of its divisors is an integer number (7035066).

Almost surely, 2^42992015 is an apocalyptic number.

42992015 is a deficient number, since it is larger than the sum of its proper divisors (13288513).

42992015 is a wasteful number, since it uses less digits than its factorization.

42992015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781689.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 42992015 is about 6556.8296454918. The cubic root of 42992015 is about 350.3181189338.

The spelling of 42992015 in words is "forty-two million, nine hundred ninety-two thousand, fifteen".