1819372 has 6 divisors (see below), whose sum is σ = 3183908. Its totient is φ = 909684.

The previous prime is 1819361. The next prime is 1819381. The reversal of 1819372 is 2739181.

It is a super-2 number, since 2×1819372² = 6620228948768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227418 + ... + 227425.

2^1819372 is an apocalyptic number.

It is an amenable number.

1819372 is a deficient number, since it is larger than the sum of its proper divisors (1364536).

1819372 is a wasteful number, since it uses less digits than its factorization.

1819372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454847 (or 454845 counting only the distinct ones).

The product of its digits is 3024, while the sum is 31.

The square root of 1819372 is about 1348.8409839562. The cubic root of 1819372 is about 122.0788704378.

The spelling of 1819372 in words is "one million, eight hundred nineteen thousand, three hundred seventy-two".