40403700 has 54 divisors (see below), whose sum is σ = 126645974. Its totient is φ = 10774080.

The previous prime is 40403689. The next prime is 40403711. The reversal of 40403700 is 730404.

It is an interprime number because it is at equal distance from previous prime (40403689) and next prime (40403711).

It can be written as a sum of positive squares in 3 ways, for example, as 2802276 + 37601424 = 1674^2 + 6132^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 21547 + ... + 23346.

Almost surely, 2^40403700 is an apocalyptic number.

It is an amenable number.

40403700 is an abundant number, since it is smaller than the sum of its proper divisors (86242274).

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

40403700 is a wasteful number, since it uses less digits than its factorization.

40403700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44913 (or 44903 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 40403700 is about 6356.3904851732. The cubic root of 40403700 is about 343.1418691379.

The spelling of 40403700 in words is "forty million, four hundred three thousand, seven hundred".