1976499340 has 12 divisors (see below), whose sum is σ = 4150648656. Its totient is φ = 790599728.

The previous prime is 1976499331. The next prime is 1976499353. The reversal of 1976499340 is 439946791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49412464 + ... + 49412503.

It is an arithmetic number, because the mean of its divisors is an integer number (345887388).

Almost surely, 2^1976499340 is an apocalyptic number.

1976499340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1976499340 is an abundant number, since it is smaller than the sum of its proper divisors (2174149316).

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

1976499340 is a wasteful number, since it uses less digits than its factorization.

1976499340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98824976 (or 98824974 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 1976499340 is about 44457.8377791813. The cubic root of 1976499340 is about 1254.9667647268.

The spelling of 1976499340 in words is "one billion, nine hundred seventy-six million, four hundred ninety-nine thousand, three hundred forty".