1914589540 has 24 divisors (see below), whose sum is σ = 4021896312. Its totient is φ = 765596160.

The previous prime is 1914589517. The next prime is 1914589553. The reversal of 1914589540 is 459854191.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 146555236 + 1768034304 = 12106^2 + 42048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59580 + ... + 85900.

It is an arithmetic number, because the mean of its divisors is an integer number (167579013).

Almost surely, 2^1914589540 is an apocalyptic number.

1914589540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1914589540 is an abundant number, since it is smaller than the sum of its proper divisors (2107306772).

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

1914589540 is a wasteful number, since it uses less digits than its factorization.

1914589540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29967 (or 29965 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 1914589540 is about 43756.0228997106. The cubic root of 1914589540 is about 1241.7244347901.

The spelling of 1914589540 in words is "one billion, nine hundred fourteen million, five hundred eighty-nine thousand, five hundred forty".