612704400 has 480 divisors, whose sum is σ = 2583168000. Its totient is φ = 120268800.

The previous prime is 612704359. The next prime is 612704401. The reversal of 612704400 is 4407216.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (612704401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1755426 + ... + 1755774.

It is an arithmetic number, because the mean of its divisors is an integer number (5381600).

Almost surely, 2^612704400 is an apocalyptic number.

612704400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 612704400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291584000).

612704400 is an abundant number, since it is smaller than the sum of its proper divisors (1970463600).

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

612704400 is a wasteful number, since it uses less digits than its factorization.

612704400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 612704400 is about 24752.8665006702. The cubic root of 612704400 is about 849.3440845251.

The spelling of 612704400 in words is "six hundred twelve million, seven hundred four thousand, four hundred".