1404942686 has 16 divisors (see below), whose sum is σ = 2412068064. Its totient is φ = 601219584.

The previous prime is 1404942683. The next prime is 1404942689. The reversal of 1404942686 is 6862494041.

It is an interprime number because it is at equal distance from previous prime (1404942683) and next prime (1404942689).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404942683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65135 + ... + 83978.

It is an arithmetic number, because the mean of its divisors is an integer number (150754254).

Almost surely, 2^1404942686 is an apocalyptic number.

1404942686 is a deficient number, since it is larger than the sum of its proper divisors (1007125378).

1404942686 is a wasteful number, since it uses less digits than its factorization.

1404942686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149795.

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 1404942686 is about 37482.5650936539. The cubic root of 1404942686 is about 1120.0039025162.

The spelling of 1404942686 in words is "one billion, four hundred four million, nine hundred forty-two thousand, six hundred eighty-six".