1840970490 has 16 divisors (see below), whose sum is σ = 4418329248. Its totient is φ = 490925456.

The previous prime is 1840970471. The next prime is 1840970491. The reversal of 1840970490 is 940790481.

It is not an unprimeable number, because it can be changed into a prime (1840970491) 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, 30682812 + ... + 30682871.

It is an arithmetic number, because the mean of its divisors is an integer number (276145578).

Almost surely, 2^1840970490 is an apocalyptic number.

1840970490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1840970490 is an abundant number, since it is smaller than the sum of its proper divisors (2577358758).

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

1840970490 is a wasteful number, since it uses less digits than its factorization.

1840970490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61365693.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1840970490 is about 42906.5320201948. The cubic root of 1840970490 is about 1225.6005363137.

Subtracting from 1840970490 its reverse (940790481), we obtain a square (900180009 = 30003²).

The spelling of 1840970490 in words is "one billion, eight hundred forty million, nine hundred seventy thousand, four hundred ninety".