1390941574 has 16 divisors (see below), whose sum is σ = 2310060096. Its totient is φ = 622809000.

The previous prime is 1390941571. The next prime is 1390941623. The reversal of 1390941574 is 4751490931.

It is a self number, because there is not a number n which added to its sum of digits gives 1390941574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390941571) 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, 470352 + ... + 473299.

It is an arithmetic number, because the mean of its divisors is an integer number (144378756).

Almost surely, 2^1390941574 is an apocalyptic number.

1390941574 is a deficient number, since it is larger than the sum of its proper divisors (919118522).

1390941574 is a wasteful number, since it uses less digits than its factorization.

1390941574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943731.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 1390941574 is about 37295.3291177327. The cubic root of 1390941574 is about 1116.2709669282.

The spelling of 1390941574 in words is "one billion, three hundred ninety million, nine hundred forty-one thousand, five hundred seventy-four".