43530607990 has 16 divisors (see below), whose sum is σ = 81761838048. Its totient is φ = 16655189056.

The previous prime is 43530607979. The next prime is 43530607993. The reversal of 43530607990 is 9970603534.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 43530607990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43530607993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94631527 + ... + 94631986.

It is an arithmetic number, because the mean of its divisors is an integer number (5110114878).

Almost surely, 2^43530607990 is an apocalyptic number.

43530607990 is a deficient number, since it is larger than the sum of its proper divisors (38231230058).

43530607990 is a wasteful number, since it uses less digits than its factorization.

43530607990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189263543.

The product of its (nonzero) digits is 612360, while the sum is 46.

The spelling of 43530607990 in words is "forty-three billion, five hundred thirty million, six hundred seven thousand, nine hundred ninety".