40345754 has 4 divisors (see below), whose sum is σ = 60518634. Its totient is φ = 20172876.

The previous prime is 40345751. The next prime is 40345769. The reversal of 40345754 is 45754304.

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

It can be written as a sum of positive squares in only one way, i.e., 37540129 + 2805625 = 6127^2 + 1675^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40345754.

It is not an unprimeable number, because it can be changed into a prime (40345751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10086437 + ... + 10086440.

Almost surely, 2^40345754 is an apocalyptic number.

40345754 is a deficient number, since it is larger than the sum of its proper divisors (20172880).

40345754 is a wasteful number, since it uses less digits than its factorization.

40345754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20172879.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 40345754 is about 6351.8307597101. The cubic root of 40345754 is about 342.9777487570.

The spelling of 40345754 in words is "forty million, three hundred forty-five thousand, seven hundred fifty-four".