609103440 has 120 divisors (see below), whose sum is σ = 2231562528. Its totient is φ = 147659520.

The previous prime is 609103399. The next prime is 609103441. The reversal of 609103440 is 44301906.

609103440 is a `hidden beast` number, since 609 + 10 + 3 + 4 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×609103440³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609103441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30534 + ... + 46373.

Almost surely, 2^609103440 is an apocalyptic number.

609103440 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

609103440 is an abundant number, since it is smaller than the sum of its proper divisors (1622459088).

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

609103440 is a wasteful number, since it uses less digits than its factorization.

609103440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76937 (or 76928 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 609103440 is about 24680.0210696831. The cubic root of 609103440 is about 847.6769046220.

The spelling of 609103440 in words is "six hundred nine million, one hundred three thousand, four hundred forty".