609973040 has 20 divisors (see below), whose sum is σ = 1418187504. Its totient is φ = 243989184.

The previous prime is 609973027. The next prime is 609973043. The reversal of 609973040 is 40379906.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 609972985 and 609973003.

It is not an unprimeable number, because it can be changed into a prime (609973043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3812252 + ... + 3812411.

Almost surely, 2^609973040 is an apocalyptic number.

It is an amenable number.

609973040 is an abundant number, since it is smaller than the sum of its proper divisors (808214464).

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

609973040 is a wasteful number, since it uses less digits than its factorization.

609973040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7624676 (or 7624670 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 609973040 is about 24697.6322751797. The cubic root of 609973040 is about 848.0801143605.

The spelling of 609973040 in words is "six hundred nine million, nine hundred seventy-three thousand, forty".