1625020 has 24 divisors (see below), whose sum is σ = 3523968. Its totient is φ = 628800.

The previous prime is 1625017. The next prime is 1625021. The reversal of 1625020 is 205261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1624985 and 1625003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691 + ... + 1930.

It is an arithmetic number, because the mean of its divisors is an integer number (146832).

2^1625020 is an apocalyptic number.

1625020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625020 is an abundant number, since it is smaller than the sum of its proper divisors (1898948).

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

1625020 is a wasteful number, since it uses less digits than its factorization.

1625020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2659 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1625020 is about 1274.7627230195. The cubic root of 1625020 is about 117.5672167091.

The spelling of 1625020 in words is "one million, six hundred twenty-five thousand, twenty".