43401340746 has 48 divisors (see below), whose sum is σ = 95643105480. Its totient is φ = 14221785600.

The previous prime is 43401340739. The next prime is 43401340747. The reversal of 43401340746 is 64704310434.

It can be written as a sum of positive squares in 4 ways, for example, as 43393472721 + 7868025 = 208311^2 + 2805^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43401340746.

It is not an unprimeable number, because it can be changed into a prime (43401340747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198846 + ... + 355446.

Almost surely, 2^43401340746 is an apocalyptic number.

43401340746 is an abundant number, since it is smaller than the sum of its proper divisors (52241764734).

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

43401340746 is a wasteful number, since it uses less digits than its factorization.

43401340746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156871 (or 156868 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The spelling of 43401340746 in words is "forty-three billion, four hundred one million, three hundred forty thousand, seven hundred forty-six".