1625603340 has 48 divisors (see below), whose sum is σ = 4555837440. Its totient is φ = 433099200.

The previous prime is 1625603321. The next prime is 1625603351. The reversal of 1625603340 is 433065261.

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 = 1625603298 and 1625603307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57291 + ... + 80829.

It is an arithmetic number, because the mean of its divisors is an integer number (94913280).

Almost surely, 2^1625603340 is an apocalyptic number.

1625603340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625603340 is an abundant number, since it is smaller than the sum of its proper divisors (2930234100).

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

1625603340 is a wasteful number, since it uses less digits than its factorization.

1625603340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24702 (or 24700 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1625603340 is about 40318.7715586673. The cubic root of 1625603340 is about 1175.8128288584.

The spelling of 1625603340 in words is "one billion, six hundred twenty-five million, six hundred three thousand, three hundred forty".