40514391 has 8 divisors (see below), whose sum is σ = 60021360. Its totient is φ = 27009576.

The previous prime is 40514381. The next prime is 40514393. The reversal of 40514391 is 19341504.

It is not a de Polignac number, because 40514391 - 2¹³ = 40506199 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: 1500533 = 40514391 / (4 + 0 + 5 + 1 + 4 + 3 + 9 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40514393) 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, 750240 + ... + 750293.

It is an arithmetic number, because the mean of its divisors is an integer number (7502670).

Almost surely, 2^40514391 is an apocalyptic number.

40514391 is a deficient number, since it is larger than the sum of its proper divisors (19506969).

40514391 is a wasteful number, since it uses less digits than its factorization.

40514391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500542 (or 1500536 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 40514391 is about 6365.0915939993. The cubic root of 40514391 is about 343.4549434619.

Adding to 40514391 its reverse (19341504), we get a palindrome (59855895).

The spelling of 40514391 in words is "forty million, five hundred fourteen thousand, three hundred ninety-one".