40078149 has 8 divisors (see below), whose sum is σ = 53662080. Its totient is φ = 26606496.

The previous prime is 40078147. The next prime is 40078219. The reversal of 40078149 is 94187004.

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

It is not a de Polignac number, because 40078149 - 2¹ = 40078147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40078147) 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, 27232 + ... + 28665.

It is an arithmetic number, because the mean of its divisors is an integer number (6707760).

Almost surely, 2^40078149 is an apocalyptic number.

It is an amenable number.

40078149 is a deficient number, since it is larger than the sum of its proper divisors (13583931).

40078149 is a wasteful number, since it uses less digits than its factorization.

40078149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56139.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 40078149 is about 6330.7305265664. The cubic root of 40078149 is about 342.2177659641.

The spelling of 40078149 in words is "forty million, seventy-eight thousand, one hundred forty-nine".