1421007044 has 6 divisors (see below), whose sum is σ = 2486762334. Its totient is φ = 710503520.

The previous prime is 1421007011. The next prime is 1421007053. The reversal of 1421007044 is 4407001241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1278920644 + 142086400 = 35762^2 + 11920^2 .

It is a super-2 number, since 2×1421007044² = 4038522038195235872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177625877 + ... + 177625884.

It is an arithmetic number, because the mean of its divisors is an integer number (414460389).

Almost surely, 2^1421007044 is an apocalyptic number.

It is an amenable number.

1421007044 is a deficient number, since it is larger than the sum of its proper divisors (1065755290).

1421007044 is a wasteful number, since it uses less digits than its factorization.

1421007044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355251765 (or 355251763 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1421007044 is about 37696.2470811088. The cubic root of 1421007044 is about 1124.2565079907.

Adding to 1421007044 its reverse (4407001241), we get a palindrome (5828008285).

The spelling of 1421007044 in words is "one billion, four hundred twenty-one million, seven thousand, forty-four".