1406421332 has 12 divisors (see below), whose sum is σ = 2483818260. Its totient is φ = 696758976.

The previous prime is 1406421311. The next prime is 1406421337. The reversal of 1406421332 is 2331246041.

It can be written as a sum of positive squares in 2 ways, for example, as 1285509316 + 120912016 = 35854^2 + 10996^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406421337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612433 + ... + 1613304.

It is an arithmetic number, because the mean of its divisors is an integer number (206984855).

Almost surely, 2^1406421332 is an apocalyptic number.

It is an amenable number.

1406421332 is a deficient number, since it is larger than the sum of its proper divisors (1077396928).

1406421332 is a wasteful number, since it uses less digits than its factorization.

1406421332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225850 (or 3225848 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1406421332 is about 37502.2843570895. The cubic root of 1406421332 is about 1120.3966845272.

Adding to 1406421332 its reverse (2331246041), we get a palindrome (3737667373).

The spelling of 1406421332 in words is "one billion, four hundred six million, four hundred twenty-one thousand, three hundred thirty-two".