40734749 has 16 divisors (see below), whose sum is σ = 45352320. Its totient is φ = 36279360.

The previous prime is 40734719. The next prime is 40734769. The reversal of 40734749 is 94743704.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40734749 - 2¹² = 40730653 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 (40734709) 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, 177767 + ... + 177995.

It is an arithmetic number, because the mean of its divisors is an integer number (2834520).

Almost surely, 2^40734749 is an apocalyptic number.

It is an amenable number.

40734749 is a deficient number, since it is larger than the sum of its proper divisors (4617571).

40734749 is a wasteful number, since it uses less digits than its factorization.

40734749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 40734749 is about 6382.3780051012. The cubic root of 40734749 is about 344.0765023877.

It can be divided in two parts, 40734 and 749, that multiplied together give a triangular number (30509766 = T₇₈₁₁).

The spelling of 40734749 in words is "forty million, seven hundred thirty-four thousand, seven hundred forty-nine".