625189040 has 120 divisors (see below), whose sum is σ = 1730670480. Its totient is φ = 209309184.

The previous prime is 625189021. The next prime is 625189051. The reversal of 625189040 is 40981526.

It is a super-2 number, since 2×625189040² = 781722671472243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 166706 + ... + 170414.

It is an arithmetic number, because the mean of its divisors is an integer number (14422254).

Almost surely, 2^625189040 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 625189040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865335240).

625189040 is an abundant number, since it is smaller than the sum of its proper divisors (1105481440).

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

625189040 is a wasteful number, since it uses less digits than its factorization.

625189040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779 (or 3766 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 625189040 is about 25003.7805141543. The cubic root of 625189040 is about 855.0741656764.

The spelling of 625189040 in words is "six hundred twenty-five million, one hundred eighty-nine thousand, forty".