40757340 has 48 divisors (see below), whose sum is σ = 122901408. Its totient is φ = 10032384.

The previous prime is 40757323. The next prime is 40757341. The reversal of 40757340 is 4375704.

It is a super-2 number, since 2×40757340² = 3322321527751200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40757298 and 40757307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40757341) 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, 25347 + ... + 26906.

It is an arithmetic number, because the mean of its divisors is an integer number (2560446).

Almost surely, 2^40757340 is an apocalyptic number.

It is an amenable number.

40757340 is an abundant number, since it is smaller than the sum of its proper divisors (82144068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40757340 is a wasteful number, since it uses less digits than its factorization.

40757340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52278 (or 52276 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 40757340 is about 6384.1475546857. The cubic root of 40757340 is about 344.1400975242.

The spelling of 40757340 in words is "forty million, seven hundred fifty-seven thousand, three hundred forty".