42980521 has 8 divisors (see below), whose sum is σ = 44216480. Its totient is φ = 41755392.

The previous prime is 42980501. The next prime is 42980549. The reversal of 42980521 is 12508924.

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 42980521 - 2¹¹ = 42978473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42980501) 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, 5710 + ... + 10888.

It is an arithmetic number, because the mean of its divisors is an integer number (5527060).

Almost surely, 2^42980521 is an apocalyptic number.

It is an amenable number.

42980521 is a deficient number, since it is larger than the sum of its proper divisors (1235959).

42980521 is a wasteful number, since it uses less digits than its factorization.

42980521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 42980521 is about 6555.9530962325. The cubic root of 42980521 is about 350.2868967379.

The spelling of 42980521 in words is "forty-two million, nine hundred eighty thousand, five hundred twenty-one".