77070342 has 32 divisors (see below), whose sum is σ = 160224480. Its totient is φ = 24684800.

The previous prime is 77070341. The next prime is 77070377. The reversal of 77070342 is 24307077.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77070341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39592 + ... + 41492.

It is an arithmetic number, because the mean of its divisors is an integer number (5007015).

Almost surely, 2^77070342 is an apocalyptic number.

77070342 is an abundant number, since it is smaller than the sum of its proper divisors (83154138).

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

77070342 is a wasteful number, since it uses less digits than its factorization.

77070342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2168.

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 77070342 is about 8778.9715798606. The cubic root of 77070342 is about 425.5615957571.

The spelling of 77070342 in words is "seventy-seven million, seventy thousand, three hundred forty-two".