426540515 has 4 divisors (see below), whose sum is σ = 511848624. Its totient is φ = 341232408.

The previous prime is 426540511. The next prime is 426540547. The reversal of 426540515 is 515045624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 426540515 - 2² = 426540511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (426540511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42654047 + ... + 42654056.

It is an arithmetic number, because the mean of its divisors is an integer number (127962156).

Almost surely, 2^426540515 is an apocalyptic number.

426540515 is a deficient number, since it is larger than the sum of its proper divisors (85308109).

426540515 is an equidigital number, since it uses as much as digits as its factorization.

426540515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85308108.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 426540515 is about 20652.8573083726. The cubic root of 426540515 is about 752.7546200015.

The spelling of 426540515 in words is "four hundred twenty-six million, five hundred forty thousand, five hundred fifteen".