1620412 has 12 divisors (see below), whose sum is σ = 2901976. Its totient is φ = 791280.

The previous prime is 1620403. The next prime is 1620413. The reversal of 1620412 is 2140261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4539 + ... + 4882.

2^1620412 is an apocalyptic number.

It is an amenable number.

1620412 is a deficient number, since it is larger than the sum of its proper divisors (1281564).

1620412 is a wasteful number, since it uses less digits than its factorization.

1620412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9468 (or 9466 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1620412 is about 1272.9540447322. The cubic root of 1620412 is about 117.4559847212.

Adding to 1620412 its reverse (2140261), we get a palindrome (3760673).

The spelling of 1620412 in words is "one million, six hundred twenty thousand, four hundred twelve".