1940212830 has 16 divisors (see below), whose sum is σ = 4656510864. Its totient is φ = 517390080.

The previous prime is 1940212823. The next prime is 1940212843. The reversal of 1940212830 is 382120491.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 64673761 = 1940212830 / (1 + 9 + 4 + 0 + 2 + 1 + 2 + 8 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32336851 + ... + 32336910.

It is an arithmetic number, because the mean of its divisors is an integer number (291031929).

Almost surely, 2^1940212830 is an apocalyptic number.

1940212830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1940212830 is an abundant number, since it is smaller than the sum of its proper divisors (2716298034).

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

1940212830 is a wasteful number, since it uses less digits than its factorization.

1940212830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64673771.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1940212830 is about 44047.8470529491. The cubic root of 1940212830 is about 1247.2393110994.

The spelling of 1940212830 in words is "one billion, nine hundred forty million, two hundred twelve thousand, eight hundred thirty".