1814509642 has 48 divisors (see below), whose sum is σ = 3108759264. Its totient is φ = 787640000.

The previous prime is 1814509621. The next prime is 1814509651. The reversal of 1814509642 is 2469054181.

It is a junction number, because it is equal to n+sod(n) for n = 1814509595 and 1814509604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1868217 + ... + 1869187.

It is an arithmetic number, because the mean of its divisors is an integer number (64765818).

Almost surely, 2^1814509642 is an apocalyptic number.

1814509642 is a deficient number, since it is larger than the sum of its proper divisors (1294249622).

1814509642 is a wasteful number, since it uses less digits than its factorization.

1814509642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 1814509642 is about 42597.0614244692. The cubic root of 1814509642 is about 1219.7001955245.

The spelling of 1814509642 in words is "one billion, eight hundred fourteen million, five hundred nine thousand, six hundred forty-two".