1656413429 has 8 divisors (see below), whose sum is σ = 1816361472. Its totient is φ = 1498026240.

The previous prime is 1656413417. The next prime is 1656413431. The reversal of 1656413429 is 9243146561.

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 1656413429 - 2⁴ = 1656413413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1656413729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387989 + ... + 392234.

It is an arithmetic number, because the mean of its divisors is an integer number (227045184).

Almost surely, 2^1656413429 is an apocalyptic number.

It is an amenable number.

1656413429 is a deficient number, since it is larger than the sum of its proper divisors (159948043).

1656413429 is a wasteful number, since it uses less digits than its factorization.

1656413429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780427.

The product of its digits is 155520, while the sum is 41.

The square root of 1656413429 is about 40699.0593134534. The cubic root of 1656413429 is about 1183.1947871298.

The spelling of 1656413429 in words is "one billion, six hundred fifty-six million, four hundred thirteen thousand, four hundred twenty-nine".