412202640 has 80 divisors (see below), whose sum is σ = 1281043008. Its totient is φ = 109644288.

The previous prime is 412202633. The next prime is 412202657. The reversal of 412202640 is 46202214.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×412202640² = 339822032845939200, which contains 22 as substring.

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, 104382 + ... + 108258.

Almost surely, 2^412202640 is an apocalyptic number.

412202640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 412202640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640521504).

412202640 is an abundant number, since it is smaller than the sum of its proper divisors (868840368).

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

412202640 is a wasteful number, since it uses less digits than its factorization.

412202640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4336 (or 4330 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 412202640 is about 20302.7741946760. The cubic root of 412202640 is about 744.2238602582.

Adding to 412202640 its reverse (46202214), we get a palindrome (458404854).

The spelling of 412202640 in words is "four hundred twelve million, two hundred two thousand, six hundred forty".