1928961474 has 32 divisors (see below), whose sum is σ = 4456213056. Its totient is φ = 550149120.

The previous prime is 1928961473. The next prime is 1928961479. The reversal of 1928961474 is 4741698291.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1928961473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858487 + ... + 860730.

It is an arithmetic number, because the mean of its divisors is an integer number (139256658).

Almost surely, 2^1928961474 is an apocalyptic number.

1928961474 is an abundant number, since it is smaller than the sum of its proper divisors (2527251582).

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

1928961474 is a wasteful number, since it uses less digits than its factorization.

1928961474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719250.

The product of its digits is 870912, while the sum is 51.

The square root of 1928961474 is about 43919.9439207292. The cubic root of 1928961474 is about 1244.8237088492.

The spelling of 1928961474 in words is "one billion, nine hundred twenty-eight million, nine hundred sixty-one thousand, four hundred seventy-four".