2054999340 has 72 divisors (see below), whose sum is σ = 6561587760. Its totient is φ = 519156864.

The previous prime is 2054999339. The next prime is 2054999383. The reversal of 2054999340 is 439994502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 297019 + ... + 303858.

Almost surely, 2^2054999340 is an apocalyptic number.

2054999340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2054999340 is an abundant number, since it is smaller than the sum of its proper divisors (4506588420).

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

2054999340 is a wasteful number, since it uses less digits than its factorization.

2054999340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600911 (or 600906 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 2054999340 is about 45332.1005469634. The cubic root of 2054999340 is about 1271.3659100782.

The spelling of 2054999340 in words is "two billion, fifty-four million, nine hundred ninety-nine thousand, three hundred forty".