1443649402 has 16 divisors (see below), whose sum is σ = 2366858592. Its totient is φ = 656354160.

The previous prime is 1443649399. The next prime is 1443649433. The reversal of 1443649402 is 2049463441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412624 + ... + 416107.

It is an arithmetic number, because the mean of its divisors is an integer number (147928662).

Almost surely, 2^1443649402 is an apocalyptic number.

1443649402 is a deficient number, since it is larger than the sum of its proper divisors (923209190).

1443649402 is a wasteful number, since it uses less digits than its factorization.

1443649402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828813.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 1443649402 is about 37995.3865883741. The cubic root of 1443649402 is about 1130.1963795800.

The spelling of 1443649402 in words is "one billion, four hundred forty-three million, six hundred forty-nine thousand, four hundred two".