1628290546 has 16 divisors (see below), whose sum is σ = 2507418144. Its totient is φ = 792608544.

The previous prime is 1628290541. The next prime is 1628290603. The reversal of 1628290546 is 6450928261.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (1628290541) 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 7 ways as a sum of consecutive naturals, for example, 4435 + ... + 57238.

It is an arithmetic number, because the mean of its divisors is an integer number (156713634).

Almost surely, 2^1628290546 is an apocalyptic number.

1628290546 is a deficient number, since it is larger than the sum of its proper divisors (879127598).

1628290546 is a wasteful number, since it uses less digits than its factorization.

1628290546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62025.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 1628290546 is about 40352.0823006694. The cubic root of 1628290546 is about 1176.4603652297.

The spelling of 1628290546 in words is "one billion, six hundred twenty-eight million, two hundred ninety thousand, five hundred forty-six".