1620416146 has 8 divisors (see below), whose sum is σ = 2437395840. Its totient is φ = 807950868.

The previous prime is 1620416143. The next prime is 1620416177. The reversal of 1620416146 is 6416140261.

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

It is not an unprimeable number, because it can be changed into a prime (1620416143) 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 3 ways as a sum of consecutive naturals, for example, 1127706 + ... + 1129141.

It is an arithmetic number, because the mean of its divisors is an integer number (304674480).

Almost surely, 2^1620416146 is an apocalyptic number.

1620416146 is a deficient number, since it is larger than the sum of its proper divisors (816979694).

1620416146 is a wasteful number, since it uses less digits than its factorization.

1620416146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257208.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1620416146 is about 40254.3928782934. The cubic root of 1620416146 is about 1174.5608489574.

The spelling of 1620416146 in words is "one billion, six hundred twenty million, four hundred sixteen thousand, one hundred forty-six".