40052745 has 16 divisors (see below), whose sum is σ = 71205120. Its totient is φ = 21361392.

The previous prime is 40052723. The next prime is 40052767. The reversal of 40052745 is 54725004.

It is an interprime number because it is at equal distance from previous prime (40052723) and next prime (40052767).

It is not a de Polignac number, because 40052745 - 2⁸ = 40052489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148209 + ... + 148478.

It is an arithmetic number, because the mean of its divisors is an integer number (4450320).

Almost surely, 2^40052745 is an apocalyptic number.

40052745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40052745 is a deficient number, since it is larger than the sum of its proper divisors (31152375).

40052745 is a wasteful number, since it uses less digits than its factorization.

40052745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296701 (or 296695 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 40052745 is about 6328.7238050021. The cubic root of 40052745 is about 342.1454444468.

Adding to 40052745 its reverse (54725004), we get a palindrome (94777749).

The spelling of 40052745 in words is "forty million, fifty-two thousand, seven hundred forty-five".