40757715 has 32 divisors (see below), whose sum is σ = 74803200. Its totient is φ = 21034080.

The previous prime is 40757713. The next prime is 40757723. The reversal of 40757715 is 51775704.

It is not a de Polignac number, because 40757715 - 2¹ = 40757713 is a prime.

It is a super-2 number, since 2×40757715² = 3322382664042450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40757715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40757713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 685 + ... + 9054.

It is an arithmetic number, because the mean of its divisors is an integer number (2337600).

Almost surely, 2^40757715 is an apocalyptic number.

40757715 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

40757715 is a deficient number, since it is larger than the sum of its proper divisors (34045485).

40757715 is a wasteful number, since it uses less digits than its factorization.

40757715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784 (or 9778 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

The square root of 40757715 is about 6384.1769242401. The cubic root of 40757715 is about 344.1411529753.

The spelling of 40757715 in words is "forty million, seven hundred fifty-seven thousand, seven hundred fifteen".