40074291 has 8 divisors (see below), whose sum is σ = 59369360. Its totient is φ = 26716176.

The previous prime is 40074277. The next prime is 40074301. The reversal of 40074291 is 19247004.

It is a happy number.

It is not a de Polignac number, because 40074291 - 2⁷ = 40074163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1484233 = 40074291 / (4 + 0 + 0 + 7 + 4 + 2 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40074271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742090 + ... + 742143.

It is an arithmetic number, because the mean of its divisors is an integer number (7421170).

Almost surely, 2^40074291 is an apocalyptic number.

40074291 is a deficient number, since it is larger than the sum of its proper divisors (19295069).

40074291 is a wasteful number, since it uses less digits than its factorization.

40074291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484242 (or 1484236 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 40074291 is about 6330.4258150617. The cubic root of 40074291 is about 342.2067847641.

It can be divided in two parts, 400 and 74291, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 40074291 in words is "forty million, seventy-four thousand, two hundred ninety-one".