1649412 has 18 divisors (see below), whose sum is σ = 4169438. Its totient is φ = 549792.

The previous prime is 1649411. The next prime is 1649419. The reversal of 1649412 is 2149461.

1649412 is a `hidden beast` number, since 1 + 649 + 4 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1602756 + 46656 = 1266^2 + 216^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 13 and base 15.

It is not an unprimeable number, because it can be changed into a prime (1649411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22873 + ... + 22944.

2^1649412 is an apocalyptic number.

1649412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1649412 is an abundant number, since it is smaller than the sum of its proper divisors (2520026).

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

1649412 is a wasteful number, since it uses less digits than its factorization.

1649412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45827 (or 45822 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1649412 is about 1284.2943587823. The cubic root of 1649412 is about 118.1525366222.

The spelling of 1649412 in words is "one million, six hundred forty-nine thousand, four hundred twelve".