40220070 has 64 divisors (see below), whose sum is σ = 105912576. Its totient is φ = 9694080.

The previous prime is 40220069. The next prime is 40220083. The reversal of 40220070 is 7002204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101112 + ... + 101508.

It is an arithmetic number, because the mean of its divisors is an integer number (1654884).

Almost surely, 2^40220070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40220070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52956288).

40220070 is an abundant number, since it is smaller than the sum of its proper divisors (65692506).

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

40220070 is a wasteful number, since it uses less digits than its factorization.

40220070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 40220070 is about 6341.9295171107. The cubic root of 40220070 is about 342.6212333004.

Adding to 40220070 its reverse (7002204), we get a palindrome (47222274).

The spelling of 40220070 in words is "forty million, two hundred twenty thousand, seventy".