70340478 has 32 divisors (see below), whose sum is σ = 155603616. Its totient is φ = 21057408.

The previous prime is 70340477. The next prime is 70340483. The reversal of 70340478 is 87404307.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70340471) 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, 9301 + ... + 15072.

It is an arithmetic number, because the mean of its divisors is an integer number (4862613).

Almost surely, 2^70340478 is an apocalyptic number.

70340478 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70340478 is an abundant number, since it is smaller than the sum of its proper divisors (85263138).

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

70340478 is a wasteful number, since it uses less digits than its factorization.

70340478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24428.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 70340478 is about 8386.9230352973. The cubic root of 70340478 is about 412.7956433386.

The spelling of 70340478 in words is "seventy million, three hundred forty thousand, four hundred seventy-eight".