1834742740 has 48 divisors (see below), whose sum is σ = 3925377792. Its totient is φ = 720187776.

The previous prime is 1834742699. The next prime is 1834742747. The reversal of 1834742740 is 472474381.

It is a junction number, because it is equal to n+sod(n) for n = 1834742693 and 1834742702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1834742747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368709 + ... + 373651.

It is an arithmetic number, because the mean of its divisors is an integer number (81778704).

Almost surely, 2^1834742740 is an apocalyptic number.

1834742740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1834742740 is an abundant number, since it is smaller than the sum of its proper divisors (2090635052).

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

1834742740 is a wasteful number, since it uses less digits than its factorization.

1834742740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296 (or 5294 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 1834742740 is about 42833.8970909722. The cubic root of 1834742740 is about 1224.2169623015.

The spelling of 1834742740 in words is "one billion, eight hundred thirty-four million, seven hundred forty-two thousand, seven hundred forty".