1421403044 has 12 divisors (see below), whose sum is σ = 2509469004. Its totient is φ = 704411904.

The previous prime is 1421403037. The next prime is 1421403077. The reversal of 1421403044 is 4403041241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 415752100 + 1005650944 = 20390^2 + 31712^2 .

It is a super-2 number, since 2×1421403044² = 4040773226984931872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571897 + ... + 1572800.

It is an arithmetic number, because the mean of its divisors is an integer number (209122417).

Almost surely, 2^1421403044 is an apocalyptic number.

It is an amenable number.

1421403044 is a deficient number, since it is larger than the sum of its proper divisors (1088065960).

1421403044 is a wasteful number, since it uses less digits than its factorization.

1421403044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144814 (or 3144812 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1421403044 is about 37701.4992274843. The cubic root of 1421403044 is about 1124.3609325792.

Adding to 1421403044 its reverse (4403041241), we get a palindrome (5824444285).

The spelling of 1421403044 in words is "one billion, four hundred twenty-one million, four hundred three thousand, forty-four".