420132715 has 16 divisors (see below), whose sum is σ = 522197280. Its totient is φ = 324110080.

The previous prime is 420132709. The next prime is 420132719. The reversal of 420132715 is 517231024.

It is a happy number.

It is not a de Polignac number, because 420132715 - 2²³ = 411744107 is a prime.

It is a super-2 number, since 2×420132715² = 353022996426542450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 420132715.

It is not an unprimeable number, because it can be changed into a prime (420132719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170895 + ... + 173335.

It is an arithmetic number, because the mean of its divisors is an integer number (32637330).

Almost surely, 2^420132715 is an apocalyptic number.

420132715 is a deficient number, since it is larger than the sum of its proper divisors (102064565).

420132715 is a wasteful number, since it uses less digits than its factorization.

420132715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 420132715 is about 20497.1391906285. The cubic root of 420132715 is about 748.9661102323.

Adding to 420132715 its reverse (517231024), we get a palindrome (937363739).

The spelling of 420132715 in words is "four hundred twenty million, one hundred thirty-two thousand, seven hundred fifteen".