42956379 has 16 divisors (see below), whose sum is σ = 63841440. Its totient is φ = 28546560.

The previous prime is 42956377. The next prime is 42956393. The reversal of 42956379 is 97365924.

It is a happy number.

42956379 is a `hidden beast` number, since 4 + 2 + 9 + 5 + 637 + 9 = 666.

It is not a de Polignac number, because 42956379 - 2¹ = 42956377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42956377) 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, 6739 + ... + 11459.

It is an arithmetic number, because the mean of its divisors is an integer number (3990090).

Almost surely, 2^42956379 is an apocalyptic number.

42956379 is a deficient number, since it is larger than the sum of its proper divisors (20885061).

42956379 is a wasteful number, since it uses less digits than its factorization.

42956379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067 (or 5061 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 42956379 is about 6554.1116102795. Note that the first 3 decimals coincide. The cubic root of 42956379 is about 350.2212995021.

The spelling of 42956379 in words is "forty-two million, nine hundred fifty-six thousand, three hundred seventy-nine".