1394749730 has 16 divisors (see below), whose sum is σ = 2738781504. Its totient is φ = 507181680.

The previous prime is 1394749729. The next prime is 1394749771. The reversal of 1394749730 is 379474931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6339662 + ... + 6339881.

It is an arithmetic number, because the mean of its divisors is an integer number (171173844).

Almost surely, 2^1394749730 is an apocalyptic number.

1394749730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1394749730 is a deficient number, since it is larger than the sum of its proper divisors (1344031774).

1394749730 is a wasteful number, since it uses less digits than its factorization.

1394749730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679561.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 1394749730 is about 37346.3482819941. The cubic root of 1394749730 is about 1117.2887572056.

The spelling of 1394749730 in words is "one billion, three hundred ninety-four million, seven hundred forty-nine thousand, seven hundred thirty".