1625632 has 24 divisors (see below), whose sum is σ = 3289356. Its totient is φ = 790272.

The previous prime is 1625629. The next prime is 1625647. The reversal of 1625632 is 2365261.

It can be written as a sum of positive squares in 2 ways, for example, as 1157776 + 467856 = 1076^2 + 684^2 .

It is a super-3 number, since 3×1625632³ = 12888072592333307904, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1625597 and 1625606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498 + ... + 1870.

2^1625632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1625632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644678).

1625632 is an abundant number, since it is smaller than the sum of its proper divisors (1663724).

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

1625632 is a wasteful number, since it uses less digits than its factorization.

1625632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1412 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 1625632 is about 1275.0027450951. The cubic root of 1625632 is about 117.5819738826.

The spelling of 1625632 in words is "one million, six hundred twenty-five thousand, six hundred thirty-two".