415597381 has 4 divisors (see below), whose sum is σ = 417999852. Its totient is φ = 413194912.

The previous prime is 415597379. The next prime is 415597387. The reversal of 415597381 is 183795514.

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

It can be written as a sum of positive squares in 2 ways, for example, as 211964481 + 203632900 = 14559^2 + 14270^2 .

It is a cyclic number.

It is not a de Polignac number, because 415597381 - 2¹ = 415597379 is a prime.

It is a super-2 number, since 2×415597381² = 345442366188118322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415597387) 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, 1200976 + ... + 1201321.

It is an arithmetic number, because the mean of its divisors is an integer number (104499963).

Almost surely, 2^415597381 is an apocalyptic number.

It is an amenable number.

415597381 is a deficient number, since it is larger than the sum of its proper divisors (2402471).

415597381 is a wasteful number, since it uses less digits than its factorization.

415597381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402470.

The product of its digits is 151200, while the sum is 43.

The square root of 415597381 is about 20386.2056548049. The cubic root of 415597381 is about 746.2613235134.

The spelling of 415597381 in words is "four hundred fifteen million, five hundred ninety-seven thousand, three hundred eighty-one".