1390954249 has 8 divisors (see below), whose sum is σ = 1398523392. Its totient is φ = 1383397440.

The previous prime is 1390954247. The next prime is 1390954259. The reversal of 1390954249 is 9424590931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1390954249 - 2¹ = 1390954247 is a prime.

It is a super-2 number, since 2×1390954249² = 3869507445622308002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1390954199 and 1390954208.

It is not an unprimeable number, because it can be changed into a prime (1390954247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301212 + ... + 305794.

It is an arithmetic number, because the mean of its divisors is an integer number (174815424).

Almost surely, 2^1390954249 is an apocalyptic number.

It is an amenable number.

1390954249 is a deficient number, since it is larger than the sum of its proper divisors (7569143).

1390954249 is a wasteful number, since it uses less digits than its factorization.

1390954249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6167.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 1390954249 is about 37295.4990447909. The cubic root of 1390954249 is about 1116.2743576030.

The spelling of 1390954249 in words is "one billion, three hundred ninety million, nine hundred fifty-four thousand, two hundred forty-nine".