1390503742 has 8 divisors (see below), whose sum is σ = 2130133536. Its totient is φ = 680459232.

The previous prime is 1390503679. The next prime is 1390503743. The reversal of 1390503742 is 2473050931.

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

It is a junction number, because it is equal to n+sod(n) for n = 1390503698 and 1390503707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390503743) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7396203 + ... + 7396390.

It is an arithmetic number, because the mean of its divisors is an integer number (266266692).

Almost surely, 2^1390503742 is an apocalyptic number.

1390503742 is a deficient number, since it is larger than the sum of its proper divisors (739629794).

1390503742 is a wasteful number, since it uses less digits than its factorization.

1390503742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14792642.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 1390503742 is about 37289.4588590395. The cubic root of 1390503742 is about 1116.1538303427.

The spelling of 1390503742 in words is "one billion, three hundred ninety million, five hundred three thousand, seven hundred forty-two".