625385340 has 48 divisors (see below), whose sum is σ = 1945644960. Its totient is φ = 166769280.

The previous prime is 625385297. The next prime is 625385347. The reversal of 625385340 is 43583526.

It is a happy number.

It is a super-2 number, since 2×625385340² = 782213646973831200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 625385295 and 625385304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625385347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578521 + ... + 579600.

It is an arithmetic number, because the mean of its divisors is an integer number (40534270).

Almost surely, 2^625385340 is an apocalyptic number.

625385340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

625385340 is an abundant number, since it is smaller than the sum of its proper divisors (1320259620).

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

625385340 is a wasteful number, since it uses less digits than its factorization.

625385340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158139 (or 1158131 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 625385340 is about 25007.7056124707. The cubic root of 625385340 is about 855.1636498075.

The spelling of 625385340 in words is "six hundred twenty-five million, three hundred eighty-five thousand, three hundred forty".