412542621 has 24 divisors (see below), whose sum is σ = 634476024. Its totient is φ = 257402880.

The previous prime is 412542617. The next prime is 412542623. The reversal of 412542621 is 126245214.

It can be written as a sum of positive squares in 4 ways, for example, as 81812025 + 330730596 = 9045^2 + 18186^2 .

It is not a de Polignac number, because 412542621 - 2² = 412542617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412542623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20245 + ... + 35141.

It is an arithmetic number, because the mean of its divisors is an integer number (26436501).

Almost surely, 2^412542621 is an apocalyptic number.

It is an amenable number.

412542621 is a deficient number, since it is larger than the sum of its proper divisors (221933403).

412542621 is a wasteful number, since it uses less digits than its factorization.

412542621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101 (or 15098 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 412542621 is about 20311.1452409755. The cubic root of 412542621 is about 744.4284137279.

Adding to 412542621 its reverse (126245214), we get a palindrome (538787835).

The spelling of 412542621 in words is "four hundred twelve million, five hundred forty-two thousand, six hundred twenty-one".