611436416 has 128 divisors (see below), whose sum is σ = 1418860800. Its totient is φ = 260333568.

The previous prime is 611436407. The next prime is 611436431. The reversal of 611436416 is 614634116.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

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, 950591 + ... + 951233.

It is an arithmetic number, because the mean of its divisors is an integer number (11084850).

Almost surely, 2^611436416 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 611436416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709430400).

611436416 is an abundant number, since it is smaller than the sum of its proper divisors (807424384).

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

611436416 is a wasteful number, since it uses less digits than its factorization.

611436416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 704 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 611436416 is about 24727.2403636152. The cubic root of 611436416 is about 848.7577776101.

The spelling of 611436416 in words is "six hundred eleven million, four hundred thirty-six thousand, four hundred sixteen".