612429012 has 144 divisors (see below), whose sum is σ = 1831257792. Its totient is φ = 177292800.

The previous prime is 612429011. The next prime is 612429023. The reversal of 612429012 is 210924216.

612429012 is a `hidden beast` number, since 612 + 42 + 9 + 0 + 1 + 2 = 666.

It is a super-2 number, since 2×612429012² = 750138589478592288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612429011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 213387 + ... + 216237.

It is an arithmetic number, because the mean of its divisors is an integer number (12717068).

Almost surely, 2^612429012 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 612429012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (915628896).

612429012 is an abundant number, since it is smaller than the sum of its proper divisors (1218828780).

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

612429012 is a wasteful number, since it uses less digits than its factorization.

612429012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900 (or 2886 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 612429012 is about 24747.3031257953. The cubic root of 612429012 is about 849.2168158561.

The spelling of 612429012 in words is "six hundred twelve million, four hundred twenty-nine thousand, twelve".