2129463730 has 16 divisors (see below), whose sum is σ = 3835666944. Its totient is φ = 851200560.

The previous prime is 2129463727. The next prime is 2129463731. The reversal of 2129463730 is 373649212.

It is a self number, because there is not a number n which added to its sum of digits gives 2129463730.

It is not an unprimeable number, because it can be changed into a prime (2129463731) 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, 57672 + ... + 87091.

It is an arithmetic number, because the mean of its divisors is an integer number (239729184).

Almost surely, 2^2129463730 is an apocalyptic number.

2129463730 is a deficient number, since it is larger than the sum of its proper divisors (1706203214).

2129463730 is a wasteful number, since it uses less digits than its factorization.

2129463730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146241.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 2129463730 is about 46146.1128373778. The cubic root of 2129463730 is about 1286.5403623621.

The spelling of 2129463730 in words is "two billion, one hundred twenty-nine million, four hundred sixty-three thousand, seven hundred thirty".