1625060640 has 96 divisors (see below), whose sum is σ = 5850230400. Its totient is φ = 371441664.

The previous prime is 1625060627. The next prime is 1625060737. The reversal of 1625060640 is 460605261.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1625060598 and 1625060607.

It is an unprimeable number.

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, 238465 + ... + 245184.

It is an arithmetic number, because the mean of its divisors is an integer number (60939900).

Almost surely, 2^1625060640 is an apocalyptic number.

1625060640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625060640 is an abundant number, since it is smaller than the sum of its proper divisors (4225169760).

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

1625060640 is a wasteful number, since it uses less digits than its factorization.

1625060640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483674 (or 483666 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 1625060640 is about 40312.0408811065. The cubic root of 1625060640 is about 1175.6819677744.

The spelling of 1625060640 in words is "one billion, six hundred twenty-five million, sixty thousand, six hundred forty".