1210449942 has 48 divisors (see below), whose sum is σ = 2833635168. Its totient is φ = 371226240.

The previous prime is 1210449941. The next prime is 1210449943. The reversal of 1210449942 is 2499440121.

1210449942 is a `hidden beast` number, since 121 + 0 + 4 + 499 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (1210449941) and next prime (1210449943).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1210449897 and 1210449906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210449941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64458 + ... + 81090.

It is an arithmetic number, because the mean of its divisors is an integer number (59034066).

Almost surely, 2^1210449942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210449942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416817584).

1210449942 is an abundant number, since it is smaller than the sum of its proper divisors (1623185226).

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

1210449942 is a wasteful number, since it uses less digits than its factorization.

1210449942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16965 (or 16962 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1210449942 is about 34791.5211222505. The cubic root of 1210449942 is about 1065.7343028229.

The spelling of 1210449942 in words is "one billion, two hundred ten million, four hundred forty-nine thousand, nine hundred forty-two".