1214421040 has 40 divisors (see below), whose sum is σ = 3226891680. Its totient is φ = 416372736.

The previous prime is 1214421017. The next prime is 1214421049. The reversal of 1214421040 is 401244121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1214420999 and 1214421017.

It is not an unprimeable number, because it can be changed into a prime (1214421049) 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, 1083745 + ... + 1084864.

It is an arithmetic number, because the mean of its divisors is an integer number (80672292).

Almost surely, 2^1214421040 is an apocalyptic number.

1214421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214421040 is an abundant number, since it is smaller than the sum of its proper divisors (2012470640).

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

1214421040 is a wasteful number, since it uses less digits than its factorization.

1214421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168629 (or 2168623 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1214421040 is about 34848.5443024526. The cubic root of 1214421040 is about 1066.8984747934.

Adding to 1214421040 its reverse (401244121), we get a palindrome (1615665161).

The spelling of 1214421040 in words is "one billion, two hundred fourteen million, four hundred twenty-one thousand, forty".