70038078 has 32 divisors (see below), whose sum is σ = 154179072. Its totient is φ = 21033600.

The previous prime is 70038071. The next prime is 70038091. The reversal of 70038078 is 87083007.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70038071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2763 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (4818096).

Almost surely, 2^70038078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70038078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77089536).

70038078 is an abundant number, since it is smaller than the sum of its proper divisors (84140994).

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

70038078 is a wasteful number, since it uses less digits than its factorization.

70038078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9520.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 70038078 is about 8368.8755517094. The cubic root of 70038078 is about 412.2032451499.

The spelling of 70038078 in words is "seventy million, thirty-eight thousand, seventy-eight".