712143390 has 64 divisors (see below), whose sum is σ = 1963238400. Its totient is φ = 161948160.

The previous prime is 712143361. The next prime is 712143407. The reversal of 712143390 is 93341217.

712143390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33270 + ... + 50310.

It is an arithmetic number, because the mean of its divisors is an integer number (30675600).

Almost surely, 2^712143390 is an apocalyptic number.

712143390 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 712143390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981619200).

712143390 is an abundant number, since it is smaller than the sum of its proper divisors (1251095010).

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

712143390 is a wasteful number, since it uses less digits than its factorization.

712143390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17257.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 712143390 is about 26686.0148767102. The cubic root of 712143390 is about 893.0089588947.

The spelling of 712143390 in words is "seven hundred twelve million, one hundred forty-three thousand, three hundred ninety".