610649436 has 48 divisors (see below), whose sum is σ = 1509858560. Its totient is φ = 191548800.

The previous prime is 610649383. The next prime is 610649437. The reversal of 610649436 is 634946016.

It is a junction number, because it is equal to n+sod(n) for n = 610649394 and 610649403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610649437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25560 + ... + 43296.

Almost surely, 2^610649436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 610649436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (754929280).

610649436 is an abundant number, since it is smaller than the sum of its proper divisors (899209124).

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

610649436 is a wasteful number, since it uses less digits than its factorization.

610649436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17914 (or 17912 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 610649436 is about 24711.3220204828. The cubic root of 610649436 is about 848.3934758018.

It can be divided in two parts, 61064 and 9436, that added together give a triangular number (70500 = T₃₇₅).

The spelling of 610649436 in words is "six hundred ten million, six hundred forty-nine thousand, four hundred thirty-six".