1912402 has 8 divisors (see below), whose sum is σ = 2874636. Its totient is φ = 954192.

The previous prime is 1912387. The next prime is 1912423. The reversal of 1912402 is 2042191.

It can be written as a sum of positive squares in 2 ways, for example, as 1879641 + 32761 = 1371^2 + 181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1912402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928 + ... + 2164.

2^1912402 is an apocalyptic number.

1912402 is a deficient number, since it is larger than the sum of its proper divisors (962234).

1912402 is a wasteful number, since it uses less digits than its factorization.

1912402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1912402 is about 1382.8962361652. The cubic root of 1912402 is about 124.1251338252.

Adding to 1912402 its reverse (2042191), we get a palindrome (3954593).

It can be divided in two parts, 19 and 12402, that added together give a palindrome (12421).

The spelling of 1912402 in words is "one million, nine hundred twelve thousand, four hundred two".