609126240 has 48 divisors (see below), whose sum is σ = 1918749168. Its totient is φ = 162433536.

The previous prime is 609126233. The next prime is 609126247. The reversal of 609126240 is 42621906.

It is an interprime number because it is at equal distance from previous prime (609126233) and next prime (609126247).

It is a tau number, because it is divible by the number of its divisors (48).

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 = 609126198 and 609126207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609126247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634027 + ... + 634986.

It is an arithmetic number, because the mean of its divisors is an integer number (39973941).

Almost surely, 2^609126240 is an apocalyptic number.

609126240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

609126240 is an abundant number, since it is smaller than the sum of its proper divisors (1309622928).

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

609126240 is a wasteful number, since it uses less digits than its factorization.

609126240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269031 (or 1269023 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 609126240 is about 24680.4829774460. The cubic root of 609126240 is about 847.6874812559.

The spelling of 609126240 in words is "six hundred nine million, one hundred twenty-six thousand, two hundred forty".