40146743 has 16 divisors (see below), whose sum is σ = 49976640. Its totient is φ = 31401216.

The previous prime is 40146731. The next prime is 40146761. The reversal of 40146743 is 34764104.

It is not a de Polignac number, because 40146743 - 2¹⁴ = 40130359 is a prime.

It is a super-2 number, since 2×40146743² = 3223521947016098, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40146143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5621 + ... + 10577.

It is an arithmetic number, because the mean of its divisors is an integer number (3123540).

Almost surely, 2^40146743 is an apocalyptic number.

40146743 is a deficient number, since it is larger than the sum of its proper divisors (9829897).

40146743 is a wasteful number, since it uses less digits than its factorization.

40146743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5066.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 40146743 is about 6336.1457527428. The cubic root of 40146743 is about 342.4128906287.

The spelling of 40146743 in words is "forty million, one hundred forty-six thousand, seven hundred forty-three".