40151399 has 16 divisors (see below), whose sum is σ = 45904320. Its totient is φ = 34890240.

The previous prime is 40151381. The next prime is 40151407. The reversal of 40151399 is 99315104.

40151399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 40151399 - 2⁸ = 40151143 is a prime.

It is a super-2 number, since 2×40151399² = 3224269683314402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40151339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9569 + ... + 13109.

It is an arithmetic number, because the mean of its divisors is an integer number (2869020).

Almost surely, 2^40151399 is an apocalyptic number.

40151399 is a deficient number, since it is larger than the sum of its proper divisors (5752921).

40151399 is a wasteful number, since it uses less digits than its factorization.

40151399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3610.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 40151399 is about 6336.5131578811. The cubic root of 40151399 is about 342.4261271760.

The spelling of 40151399 in words is "forty million, one hundred fifty-one thousand, three hundred ninety-nine".