40470570 has 256 divisors, whose sum is σ = 138240000. Its totient is φ = 8382528.

The previous prime is 40470569. The next prime is 40470571. The reversal of 40470570 is 7507404.

It is an interprime number because it is at equal distance from previous prime (40470569) and next prime (40470571).

It is a super-2 number, since 2×40470570² = 3275734072249800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40470571) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1759579 + ... + 1759601.

It is an arithmetic number, because the mean of its divisors is an integer number (540000).

Almost surely, 2^40470570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40470570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69120000).

40470570 is an abundant number, since it is smaller than the sum of its proper divisors (97769430).

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

40470570 is a wasteful number, since it uses less digits than its factorization.

40470570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 40470570 is about 6361.6483712950. The cubic root of 40470570 is about 343.3310700409.

Adding to 40470570 its reverse (7507404), we get a palindrome (47977974).

The spelling of 40470570 in words is "forty million, four hundred seventy thousand, five hundred seventy".