1890587146 has 16 divisors (see below), whose sum is σ = 3244115520. Its totient is φ = 809474400.

The previous prime is 1890587129. The next prime is 1890587147. The reversal of 1890587146 is 6417850981.

It is a self number, because there is not a number n which added to its sum of digits gives 1890587146.

It is not an unprimeable number, because it can be changed into a prime (1890587147) 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, 49531 + ... + 78958.

It is an arithmetic number, because the mean of its divisors is an integer number (202757220).

Almost surely, 2^1890587146 is an apocalyptic number.

1890587146 is a deficient number, since it is larger than the sum of its proper divisors (1353528374).

1890587146 is a wasteful number, since it uses less digits than its factorization.

1890587146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129549.

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 1890587146 is about 43480.8825347416. The cubic root of 1890587146 is about 1236.5136082306.

The spelling of 1890587146 in words is "one billion, eight hundred ninety million, five hundred eighty-seven thousand, one hundred forty-six".