1821010074 has 32 divisors (see below), whose sum is σ = 3953080320. Its totient is φ = 555895872.

The previous prime is 1821010013. The next prime is 1821010099. The reversal of 1821010074 is 4700101281.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82009 + ... + 101820.

It is an arithmetic number, because the mean of its divisors is an integer number (123533760).

Almost surely, 2^1821010074 is an apocalyptic number.

1821010074 is an abundant number, since it is smaller than the sum of its proper divisors (2132070246).

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

1821010074 is a wasteful number, since it uses less digits than its factorization.

1821010074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183974.

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 1821010074 is about 42673.2946232184. The cubic root of 1821010074 is about 1221.1549740543.

The spelling of 1821010074 in words is "one billion, eight hundred twenty-one million, ten thousand, seventy-four".