70039476 has 72 divisors (see below), whose sum is σ = 192552360. Its totient is φ = 21337344.

The previous prime is 70039471. The next prime is 70039493. The reversal of 70039476 is 67493007.

It can be written as a sum of positive squares in 4 ways, for example, as 24800400 + 45239076 = 4980^2 + 6726^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70039476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70039471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50326 + ... + 51698.

Almost surely, 2^70039476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70039476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96276180).

70039476 is an abundant number, since it is smaller than the sum of its proper divisors (122512884).

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

70039476 is a wasteful number, since it uses less digits than its factorization.

70039476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 70039476 is about 8368.9590750583. The cubic root of 70039476 is about 412.2059877357.

The spelling of 70039476 in words is "seventy million, thirty-nine thousand, four hundred seventy-six".