1378433402 has 16 divisors (see below), whose sum is σ = 2122005600. Its totient is φ = 671312880.

The previous prime is 1378433363. The next prime is 1378433429. The reversal of 1378433402 is 2043348731.

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, 40724 + ... + 66447.

It is an arithmetic number, because the mean of its divisors is an integer number (132625350).

Almost surely, 2^1378433402 is an apocalyptic number.

1378433402 is a deficient number, since it is larger than the sum of its proper divisors (743572198).

1378433402 is a wasteful number, since it uses less digits than its factorization.

1378433402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107341.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 1378433402 is about 37127.2595541335. The cubic root of 1378433402 is about 1112.9148296359.

The spelling of 1378433402 in words is "one billion, three hundred seventy-eight million, four hundred thirty-three thousand, four hundred two".