27315420 has 48 divisors (see below), whose sum is σ = 83438208. Its totient is φ = 6621760.

The previous prime is 27315403. The next prime is 27315439. The reversal of 27315420 is 2451372.

It is a super-2 number, since 2×27315420² = 1492264339552800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20034 + ... + 21353.

It is an arithmetic number, because the mean of its divisors is an integer number (1738296).

Almost surely, 2^27315420 is an apocalyptic number.

27315420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27315420 is an abundant number, since it is smaller than the sum of its proper divisors (56122788).

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

27315420 is a wasteful number, since it uses less digits than its factorization.

27315420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41410 (or 41408 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 27315420 is about 5226.4155977113. The cubic root of 27315420 is about 301.1637023749.

Adding to 27315420 its reverse (2451372), we get a palindrome (29766792).

The spelling of 27315420 in words is "twenty-seven million, three hundred fifteen thousand, four hundred twenty".