1912428 has 36 divisors (see below), whose sum is σ = 5525520. Its totient is φ = 546336.

The previous prime is 1912423. The next prime is 1912429. The reversal of 1912428 is 8242191.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1912423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3543 + ... + 4046.

2^1912428 is an apocalyptic number.

1912428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1912428 is an abundant number, since it is smaller than the sum of its proper divisors (3613092).

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

1912428 is a wasteful number, since it uses less digits than its factorization.

1912428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7606 (or 7601 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1912428 is about 1382.9056366940. The cubic root of 1912428 is about 124.1256963357.

The spelling of 1912428 in words is "one million, nine hundred twelve thousand, four hundred twenty-eight".