40449051 has 12 divisors (see below), whose sum is σ = 60590712. Its totient is φ = 26965872.

The previous prime is 40449049. The next prime is 40449053. The reversal of 40449051 is 15094404.

It is an interprime number because it is at equal distance from previous prime (40449049) and next prime (40449053).

It is not a de Polignac number, because 40449051 - 2¹ = 40449049 is a prime.

It is a super-2 number, since 2×40449051² = 3272251453601202, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (40449053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82986 + ... + 83471.

It is an arithmetic number, because the mean of its divisors is an integer number (5049226).

Almost surely, 2^40449051 is an apocalyptic number.

40449051 is a deficient number, since it is larger than the sum of its proper divisors (20141661).

40449051 is an equidigital number, since it uses as much as digits as its factorization.

40449051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166472 (or 166460 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 40449051 is about 6359.9568394762. The cubic root of 40449051 is about 343.2702072859.

It can be divided in two parts, 404 and 49051, that added together give a triangular number (49455 = T₃₁₄).

The spelling of 40449051 in words is "forty million, four hundred forty-nine thousand, fifty-one".