1394007804 has 36 divisors (see below), whose sum is σ = 4027134384. Its totient is φ = 398287872.

The previous prime is 1394007773. The next prime is 1394007863. The reversal of 1394007804 is 4087004931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1394007804² = 3886515515225804832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2765637 + ... + 2766140.

It is an arithmetic number, because the mean of its divisors is an integer number (111864844).

Almost surely, 2^1394007804 is an apocalyptic number.

1394007804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1394007804 is an abundant number, since it is smaller than the sum of its proper divisors (2633126580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1394007804 is a wasteful number, since it uses less digits than its factorization.

1394007804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5531794 (or 5531789 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1394007804 is about 37336.4139145687. The cubic root of 1394007804 is about 1117.0906111182.

The spelling of 1394007804 in words is "one billion, three hundred ninety-four million, seven thousand, eight hundred four".