80000742 has 16 divisors (see below), whose sum is σ = 169413552. Its totient is φ = 25098240.

The previous prime is 80000737. The next prime is 80000749. The reversal of 80000742 is 24700008.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80000749) 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, 392059 + ... + 392262.

It is an arithmetic number, because the mean of its divisors is an integer number (10588347).

Almost surely, 2^80000742 is an apocalyptic number.

80000742 is an abundant number, since it is smaller than the sum of its proper divisors (89412810).

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

80000742 is a wasteful number, since it uses less digits than its factorization.

80000742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784343.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 80000742 is about 8944.3133889640. The cubic root of 80000742 is about 430.8882701610. Note that the first 3 decimals are identical.

The spelling of 80000742 in words is "eighty million, seven hundred forty-two", and thus it is an aban number.