70441878 has 32 divisors (see below), whose sum is σ = 152048736. Its totient is φ = 21627648.

The previous prime is 70441871. The next prime is 70441879. The reversal of 70441878 is 87814407.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70441871) 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, 58450 + ... + 59642.

It is an arithmetic number, because the mean of its divisors is an integer number (4751523).

Almost surely, 2^70441878 is an apocalyptic number.

70441878 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

70441878 is an abundant number, since it is smaller than the sum of its proper divisors (81606858).

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

70441878 is a wasteful number, since it uses less digits than its factorization.

70441878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968.

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 70441878 is about 8392.9659834888. The cubic root of 70441878 is about 412.9939046250.

The spelling of 70441878 in words is "seventy million, four hundred forty-one thousand, eight hundred seventy-eight".