612538016 has 48 divisors (see below), whose sum is σ = 1294937280. Its totient is φ = 284175360.

The previous prime is 612537977. The next prime is 612538037. The reversal of 612538016 is 610835216.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30695 + ... + 46553.

It is an arithmetic number, because the mean of its divisors is an integer number (26977860).

Almost surely, 2^612538016 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 612538016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647468640).

612538016 is an abundant number, since it is smaller than the sum of its proper divisors (682399264).

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

612538016 is a wasteful number, since it uses less digits than its factorization.

612538016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15957 (or 15949 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 612538016 is about 24749.5053687947. The cubic root of 612538016 is about 849.2671958656.

The spelling of 612538016 in words is "six hundred twelve million, five hundred thirty-eight thousand, sixteen".