1390673343 has 8 divisors (see below), whose sum is σ = 1872590256. Its totient is φ = 917936000.

The previous prime is 1390673341. The next prime is 1390673353. The reversal of 1390673343 is 3433760931.

It is a happy number.

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 1390673343 - 2¹ = 1390673341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390673341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294538 + ... + 2295143.

It is an arithmetic number, because the mean of its divisors is an integer number (234073782).

Almost surely, 2^1390673343 is an apocalyptic number.

1390673343 is a deficient number, since it is larger than the sum of its proper divisors (481916913).

1390673343 is a wasteful number, since it uses less digits than its factorization.

1390673343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4589785.

The product of its (nonzero) digits is 122472, while the sum is 39.

The square root of 1390673343 is about 37291.7329042242. The cubic root of 1390673343 is about 1116.1992079289.

The spelling of 1390673343 in words is "one billion, three hundred ninety million, six hundred seventy-three thousand, three hundred forty-three".