40070272 has 64 divisors (see below), whose sum is σ = 88128000. Its totient is φ = 17996800.

The previous prime is 40070269. The next prime is 40070291. The reversal of 40070272 is 27207004.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209697 + ... + 209887.

It is an arithmetic number, because the mean of its divisors is an integer number (1377000).

Almost surely, 2^40070272 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 40070272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44064000).

40070272 is an abundant number, since it is smaller than the sum of its proper divisors (48057728).

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

40070272 is a wasteful number, since it uses less digits than its factorization.

40070272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 40070272 is about 6330.1083719001. The cubic root of 40070272 is about 342.1953445530.

Adding to 40070272 its reverse (27207004), we get a palindrome (67277276).

The spelling of 40070272 in words is "forty million, seventy thousand, two hundred seventy-two".