42959431 has 8 divisors (see below), whose sum is σ = 44163504. Its totient is φ = 41762880.

The previous prime is 42959429. The next prime is 42959443. The reversal of 42959431 is 13495924.

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

It is a cyclic number.

It is not a de Polignac number, because 42959431 - 2¹ = 42959429 is a prime.

It is a super-2 number, since 2×42959431² = 3691025423687522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42959461) 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, 10881 + ... + 14293.

It is an arithmetic number, because the mean of its divisors is an integer number (5520438).

Almost surely, 2^42959431 is an apocalyptic number.

42959431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42959431 is a deficient number, since it is larger than the sum of its proper divisors (1204073).

42959431 is a wasteful number, since it uses less digits than its factorization.

42959431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761.

The product of its digits is 38880, while the sum is 37.

The square root of 42959431 is about 6554.3444370890. The cubic root of 42959431 is about 350.2295935756.

The spelling of 42959431 in words is "forty-two million, nine hundred fifty-nine thousand, four hundred thirty-one".