40372549 has 8 divisors (see below), whose sum is σ = 48568640. Its totient is φ = 32783616.

The previous prime is 40372547. The next prime is 40372559. The reversal of 40372549 is 94527304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40372549 - 2¹ = 40372547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40372543) 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, 151644 + ... + 151909.

It is an arithmetic number, because the mean of its divisors is an integer number (6071080).

Almost surely, 2^40372549 is an apocalyptic number.

It is an amenable number.

40372549 is a deficient number, since it is larger than the sum of its proper divisors (8196091).

40372549 is a wasteful number, since it uses less digits than its factorization.

40372549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303579.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 40372549 is about 6353.9396440319. The cubic root of 40372549 is about 343.0536597194.

The spelling of 40372549 in words is "forty million, three hundred seventy-two thousand, five hundred forty-nine".