1409211912 has 64 divisors (see below), whose sum is σ = 3778488000. Its totient is φ = 436610304.

The previous prime is 1409211901. The next prime is 1409211913. The reversal of 1409211912 is 2191129041.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1409211912.

It is not an unprimeable number, because it can be changed into a prime (1409211913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4987 + ... + 53322.

It is an arithmetic number, because the mean of its divisors is an integer number (59038875).

Almost surely, 2^1409211912 is an apocalyptic number.

1409211912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1409211912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1889244000).

1409211912 is an abundant number, since it is smaller than the sum of its proper divisors (2369276088).

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

1409211912 is a wasteful number, since it uses less digits than its factorization.

1409211912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58390 (or 58386 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 1409211912 is about 37539.4713867950. The cubic root of 1409211912 is about 1121.1372143886.

The spelling of 1409211912 in words is "one billion, four hundred nine million, two hundred eleven thousand, nine hundred twelve".