1394468290 has 16 divisors (see below), whose sum is σ = 2513595960. Its totient is φ = 556997760.

The previous prime is 1394468279. The next prime is 1394468303. The reversal of 1394468290 is 928644931.

It can be written as a sum of positive squares in 4 ways, for example, as 538379209 + 856089081 = 23203^2 + 29259^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1394468290.

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, 91251 + ... + 105430.

Almost surely, 2^1394468290 is an apocalyptic number.

1394468290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1394468290 is a deficient number, since it is larger than the sum of its proper divisors (1119127670).

1394468290 is a wasteful number, since it uses less digits than its factorization.

1394468290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197397.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 1394468290 is about 37342.5801197507. The cubic root of 1394468290 is about 1117.2136013326.

The spelling of 1394468290 in words is "one billion, three hundred ninety-four million, four hundred sixty-eight thousand, two hundred ninety".