1396140366 has 32 divisors (see below), whose sum is σ = 2888460288. Its totient is φ = 449413920.

The previous prime is 1396140353. The next prime is 1396140371. The reversal of 1396140366 is 6630416931.

It is a super-2 number, since 2×1396140366² = 3898415843149227912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82876 + ... + 98288.

It is an arithmetic number, because the mean of its divisors is an integer number (90264384).

Almost surely, 2^1396140366 is an apocalyptic number.

1396140366 is an abundant number, since it is smaller than the sum of its proper divisors (1492319922).

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

1396140366 is a wasteful number, since it uses less digits than its factorization.

1396140366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 1396140366 is about 37364.9617422526. The cubic root of 1396140366 is about 1117.6599649891.

The spelling of 1396140366 in words is "one billion, three hundred ninety-six million, one hundred forty thousand, three hundred sixty-six".