212753740 has 24 divisors (see below), whose sum is σ = 448373520. Its totient is φ = 84798528.

The previous prime is 212753729. The next prime is 212753741. The reversal of 212753740 is 47357212.

It is not an unprimeable number, because it can be changed into a prime (212753741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13135 + ... + 24454.

It is an arithmetic number, because the mean of its divisors is an integer number (18682230).

Almost surely, 2^212753740 is an apocalyptic number.

212753740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212753740 is an abundant number, since it is smaller than the sum of its proper divisors (235619780).

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

212753740 is a wasteful number, since it uses less digits than its factorization.

212753740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37881 (or 37879 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 212753740 is about 14586.0803508002. The cubic root of 212753740 is about 596.9790186851.

The spelling of 212753740 in words is "two hundred twelve million, seven hundred fifty-three thousand, seven hundred forty".