43455897940 has 96 divisors (see below), whose sum is σ = 114609196800. Its totient is φ = 13753047168.

The previous prime is 43455897923. The next prime is 43455897977. The reversal of 43455897940 is 4979855434.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154462 + ... + 332821.

It is an arithmetic number, because the mean of its divisors is an integer number (1193845800).

Almost surely, 2^43455897940 is an apocalyptic number.

It is an amenable number.

43455897940 is an abundant number, since it is smaller than the sum of its proper divisors (71153298860).

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

43455897940 is a wasteful number, since it uses less digits than its factorization.

43455897940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487326 (or 487310 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 58.

The spelling of 43455897940 in words is "forty-three billion, four hundred fifty-five million, eight hundred ninety-seven thousand, nine hundred forty".