1966274430 has 32 divisors (see below), whose sum is σ = 4720245408. Its totient is φ = 524208000.

The previous prime is 1966274423. The next prime is 1966274483. The reversal of 1966274430 is 344726691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196140 + ... + 205920.

It is an arithmetic number, because the mean of its divisors is an integer number (147507669).

Almost surely, 2^1966274430 is an apocalyptic number.

1966274430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1966274430 is an abundant number, since it is smaller than the sum of its proper divisors (2753970978).

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

1966274430 is a wasteful number, since it uses less digits than its factorization.

1966274430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16492.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 1966274430 is about 44342.6930846560. The cubic root of 1966274430 is about 1252.7989398043.

It can be divided in two parts, 1966 and 274430, that added together give a triangular number (276396 = T₇₄₃).

The spelling of 1966274430 in words is "one billion, nine hundred sixty-six million, two hundred seventy-four thousand, four hundred thirty".