1210405412 has 48 divisors (see below), whose sum is σ = 2270177280. Its totient is φ = 563040000.

The previous prime is 1210405381. The next prime is 1210405439. The reversal of 1210405412 is 2145040121.

It is a happy number.

It is a super-2 number, since 2×1210405412² = 2930162522797779488, 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, 1051037 + ... + 1052187.

It is an arithmetic number, because the mean of its divisors is an integer number (47295360).

Almost surely, 2^1210405412 is an apocalyptic number.

It is an amenable number.

1210405412 is a deficient number, since it is larger than the sum of its proper divisors (1059771868).

1210405412 is a wasteful number, since it uses less digits than its factorization.

1210405412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1210405412 is about 34790.8811615918. The cubic root of 1210405412 is about 1065.7212339277.

Adding to 1210405412 its reverse (2145040121), we get a palindrome (3355445533).

The spelling of 1210405412 in words is "one billion, two hundred ten million, four hundred five thousand, four hundred twelve".