1646034474 has 16 divisors (see below), whose sum is σ = 3762364608. Its totient is φ = 470295552.

The previous prime is 1646034463. The next prime is 1646034479. The reversal of 1646034474 is 4744306461.

It is not an unprimeable number, because it can be changed into a prime (1646034479) 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, 19595607 + ... + 19595690.

It is an arithmetic number, because the mean of its divisors is an integer number (235147788).

Almost surely, 2^1646034474 is an apocalyptic number.

1646034474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1646034474 is an abundant number, since it is smaller than the sum of its proper divisors (2116330134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1646034474 is a wasteful number, since it uses less digits than its factorization.

1646034474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39191309.

The product of its (nonzero) digits is 193536, while the sum is 39.

The square root of 1646034474 is about 40571.3504088784. The cubic root of 1646034474 is about 1180.7183393060.

The spelling of 1646034474 in words is "one billion, six hundred forty-six million, thirty-four thousand, four hundred seventy-four".