1628074354 has 4 divisors (see below), whose sum is σ = 2442111534. Its totient is φ = 814037176.

The previous prime is 1628074351. The next prime is 1628074367. The reversal of 1628074354 is 4534708261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4534708261 = 3547 ⋅1278463.

It can be written as a sum of positive squares in only one way, i.e., 1511110129 + 116964225 = 38873^2 + 10815^2 .

It is a super-2 number, since 2×1628074354² = 5301252204305034632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1628074351) 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 as a sum of consecutive naturals, namely, 407018587 + ... + 407018590.

Almost surely, 2^1628074354 is an apocalyptic number.

1628074354 is a deficient number, since it is larger than the sum of its proper divisors (814037180).

1628074354 is an equidigital number, since it uses as much as digits as its factorization.

1628074354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814037179.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 1628074354 is about 40349.4033908805. The cubic root of 1628074354 is about 1176.4082957803.

The spelling of 1628074354 in words is "one billion, six hundred twenty-eight million, seventy-four thousand, three hundred fifty-four".