40467731 has 4 divisors (see below), whose sum is σ = 41863200. Its totient is φ = 39072264.

The previous prime is 40467727. The next prime is 40467737. The reversal of 40467731 is 13776404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40467731 - 2² = 40467727 is a prime.

It is a super-2 number, since 2×40467731² = 3275274504576722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40467737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697691 + ... + 697748.

It is an arithmetic number, because the mean of its divisors is an integer number (10465800).

Almost surely, 2^40467731 is an apocalyptic number.

40467731 is a deficient number, since it is larger than the sum of its proper divisors (1395469).

40467731 is a wasteful number, since it uses less digits than its factorization.

40467731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395468.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 40467731 is about 6361.4252333891. The cubic root of 40467731 is about 343.3230416580.

The spelling of 40467731 in words is "forty million, four hundred sixty-seven thousand, seven hundred thirty-one".