212678070 has 96 divisors (see below), whose sum is σ = 575134560. Its totient is φ = 50265600.

The previous prime is 212678051. The next prime is 212678101. The reversal of 212678070 is 70876212.

It is a super-2 number, since 2×212678070² = 90463922917849800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148116 + ... + 149544.

It is an arithmetic number, because the mean of its divisors is an integer number (5990985).

Almost surely, 2^212678070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212678070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (287567280).

212678070 is an abundant number, since it is smaller than the sum of its proper divisors (362456490).

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

212678070 is a wasteful number, since it uses less digits than its factorization.

212678070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1502 (or 1491 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 212678070 is about 14583.4862087225. The cubic root of 212678070 is about 596.9082345647.

The spelling of 212678070 in words is "two hundred twelve million, six hundred seventy-eight thousand, seventy".