42976578 has 16 divisors (see below), whose sum is σ = 91009440. Its totient is φ = 13482816.

The previous prime is 42976559. The next prime is 42976597. The reversal of 42976578 is 87567924.

It is an interprime number because it is at equal distance from previous prime (42976559) and next prime (42976597).

It is a Curzon 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, 210568 + ... + 210771.

It is an arithmetic number, because the mean of its divisors is an integer number (5688090).

Almost surely, 2^42976578 is an apocalyptic number.

42976578 is an abundant number, since it is smaller than the sum of its proper divisors (48032862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42976578 is a wasteful number, since it uses less digits than its factorization.

42976578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421361.

The product of its digits is 846720, while the sum is 48.

The square root of 42976578 is about 6555.6523702832. The cubic root of 42976578 is about 350.2761847266.

The spelling of 42976578 in words is "forty-two million, nine hundred seventy-six thousand, five hundred seventy-eight".