1552470640 has 80 divisors (see below), whose sum is σ = 4146163200. Its totient is φ = 529562880.

The previous prime is 1552470631. The next prime is 1552470641. The reversal of 1552470640 is 460742551.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1552470596 and 1552470605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552470641) 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, 104475 + ... + 118405.

It is an arithmetic number, because the mean of its divisors is an integer number (51827040).

Almost surely, 2^1552470640 is an apocalyptic number.

1552470640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1552470640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073081600).

1552470640 is an abundant number, since it is smaller than the sum of its proper divisors (2593692560).

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

1552470640 is a wasteful number, since it uses less digits than its factorization.

1552470640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14150 (or 14144 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 1552470640 is about 39401.4040358970. The cubic root of 1552470640 is about 1157.9090950721.

The spelling of 1552470640 in words is "one billion, five hundred fifty-two million, four hundred seventy thousand, six hundred forty".