40571490 has 16 divisors (see below), whose sum is σ = 97371648. Its totient is φ = 10819056.

The previous prime is 40571473. The next prime is 40571491. The reversal of 40571490 is 9417504.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1352383 = 40571490 / (4 + 0 + 5 + 7 + 1 + 4 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (40571491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676162 + ... + 676221.

It is an arithmetic number, because the mean of its divisors is an integer number (6085728).

Almost surely, 2^40571490 is an apocalyptic number.

40571490 is an abundant number, since it is smaller than the sum of its proper divisors (56800158).

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

40571490 is a wasteful number, since it uses less digits than its factorization.

40571490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352393.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 40571490 is about 6369.5753390630. The cubic root of 40571490 is about 343.6162172517.

Adding to 40571490 its reverse (9417504), we get a palindrome (49988994).

The spelling of 40571490 in words is "forty million, five hundred seventy-one thousand, four hundred ninety".