42976949 has 12 divisors (see below), whose sum is σ = 45789024. Its totient is φ = 40252344.

The previous prime is 42976937. The next prime is 42976961. The reversal of 42976949 is 94967924.

It is an interprime number because it is at equal distance from previous prime (42976937) and next prime (42976961).

It is not a de Polignac number, because 42976949 - 2¹⁶ = 42911413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42976897 and 42976906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42976919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257264 + ... + 257430.

It is an arithmetic number, because the mean of its divisors is an integer number (3815752).

Almost surely, 2^42976949 is an apocalyptic number.

It is an amenable number.

42976949 is a deficient number, since it is larger than the sum of its proper divisors (2812075).

42976949 is an equidigital number, since it uses as much as digits as its factorization.

42976949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 257 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The square root of 42976949 is about 6555.6806664144. The cubic root of 42976949 is about 350.2771926562.

The spelling of 42976949 in words is "forty-two million, nine hundred seventy-six thousand, nine hundred forty-nine".