1390969430 has 16 divisors (see below), whose sum is σ = 2531878560. Its totient is φ = 550135872.

The previous prime is 1390969429. The next prime is 1390969457. The reversal of 1390969430 is 349690931.

It is a congruent number.

It is an unprimeable number.

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, 780554 + ... + 782333.

It is an arithmetic number, because the mean of its divisors is an integer number (158242410).

Almost surely, 2^1390969430 is an apocalyptic number.

1390969430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1390969430 is a deficient number, since it is larger than the sum of its proper divisors (1140909130).

1390969430 is a wasteful number, since it uses less digits than its factorization.

1390969430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562983.

The product of its (nonzero) digits is 157464, while the sum is 44.

The square root of 1390969430 is about 37295.7025674541. The cubic root of 1390969430 is about 1116.2784186279.

The spelling of 1390969430 in words is "one billion, three hundred ninety million, nine hundred sixty-nine thousand, four hundred thirty".