1620034 has 12 divisors (see below), whose sum is σ = 2631906. Its totient is φ = 747552.

The previous prime is 1620019. The next prime is 1620041. The reversal of 1620034 is 4300261.

It can be written as a sum of positive squares in 3 ways, for example, as 1134225 + 485809 = 1065^2 + 697^2 .

It is a super-2 number, since 2×1620034² = 5249020322312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2059 + ... + 2734.

2^1620034 is an apocalyptic number.

1620034 is a deficient number, since it is larger than the sum of its proper divisors (1011872).

1620034 is a wasteful number, since it uses less digits than its factorization.

1620034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821 (or 4808 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1620034 is about 1272.8055625271. The cubic root of 1620034 is about 117.4468508682.

Adding to 1620034 its reverse (4300261), we get a palindrome (5920295).

The spelling of 1620034 in words is "one million, six hundred twenty thousand, thirty-four".