40757620 has 12 divisors (see below), whose sum is σ = 85591044. Its totient is φ = 16303040.

The previous prime is 40757581. The next prime is 40757659. The reversal of 40757620 is 2675704.

It is an interprime number because it is at equal distance from previous prime (40757581) and next prime (40757659).

It can be written as a sum of positive squares in 2 ways, for example, as 12306064 + 28451556 = 3508^2 + 5334^2 .

It is a super-2 number, since 2×40757620² = 3322367176128800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018921 + ... + 1018960.

It is an arithmetic number, because the mean of its divisors is an integer number (7132587).

Almost surely, 2^40757620 is an apocalyptic number.

It is an amenable number.

40757620 is an abundant number, since it is smaller than the sum of its proper divisors (44833424).

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

40757620 is a wasteful number, since it uses less digits than its factorization.

40757620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037890 (or 2037888 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 40757620 is about 6384.1694839658. The cubic root of 40757620 is about 344.1408855950.

The spelling of 40757620 in words is "forty million, seven hundred fifty-seven thousand, six hundred twenty".