403625620 has 48 divisors (see below), whose sum is σ = 886370688. Its totient is φ = 154098560.

The previous prime is 403625561. The next prime is 403625627. The reversal of 403625620 is 26526304.

It is a happy number.

It is a super-2 number, since 2×403625620² = 325827282240768800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403625627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379890 + ... + 380950.

It is an arithmetic number, because the mean of its divisors is an integer number (18466056).

Almost surely, 2^403625620 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 403625620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443185344).

403625620 is an abundant number, since it is smaller than the sum of its proper divisors (482745068).

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

403625620 is a wasteful number, since it uses less digits than its factorization.

403625620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1918 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 403625620 is about 20090.4360330979. The cubic root of 403625620 is about 739.0257571302.

The spelling of 403625620 in words is "four hundred three million, six hundred twenty-five thousand, six hundred twenty".