2054642340 has 48 divisors (see below), whose sum is σ = 5886796608. Its totient is φ = 535161984.

The previous prime is 2054642329. The next prime is 2054642347. The reversal of 2054642340 is 432464502.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2054642298 and 2054642307.

It is not an unprimeable number, because it can be changed into a prime (2054642347) 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, 395607 + ... + 400766.

It is an arithmetic number, because the mean of its divisors is an integer number (122641596).

Almost surely, 2^2054642340 is an apocalyptic number.

2054642340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2054642340 is an abundant number, since it is smaller than the sum of its proper divisors (3832154268).

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

2054642340 is a wasteful number, since it uses less digits than its factorization.

2054642340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796428 (or 796426 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 2054642340 is about 45328.1627688571. The cubic root of 2054642340 is about 1271.2922841153.

The spelling of 2054642340 in words is "two billion, fifty-four million, six hundred forty-two thousand, three hundred forty".