1404736642 has 16 divisors (see below), whose sum is σ = 2157503040. Its totient is φ = 685590192.

The previous prime is 1404736631. The next prime is 1404736657. The reversal of 1404736642 is 2466374041.

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, 157248 + ... + 165940.

It is an arithmetic number, because the mean of its divisors is an integer number (134843940).

Almost surely, 2^1404736642 is an apocalyptic number.

1404736642 is a deficient number, since it is larger than the sum of its proper divisors (752766398).

1404736642 is a wasteful number, since it uses less digits than its factorization.

1404736642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10617.

The product of its (nonzero) digits is 96768, while the sum is 37.

The square root of 1404736642 is about 37479.8164616637. The cubic root of 1404736642 is about 1119.9491478825.

The spelling of 1404736642 in words is "one billion, four hundred four million, seven hundred thirty-six thousand, six hundred forty-two".