70342638 has 16 divisors (see below), whose sum is σ = 142992336. Its totient is φ = 23063040.

The previous prime is 70342621. The next prime is 70342639. The reversal of 70342638 is 83624307.

It is a junction number, because it is equal to n+sod(n) for n = 70342599 and 70342608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70342639) 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, 95731 + ... + 96462.

It is an arithmetic number, because the mean of its divisors is an integer number (8937021).

Almost surely, 2^70342638 is an apocalyptic number.

70342638 is an abundant number, since it is smaller than the sum of its proper divisors (72649698).

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

70342638 is a wasteful number, since it uses less digits than its factorization.

70342638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192259.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 70342638 is about 8387.0518062070. The cubic root of 70342638 is about 412.7998686414.

The spelling of 70342638 in words is "seventy million, three hundred forty-two thousand, six hundred thirty-eight".