40343100 has 72 divisors (see below), whose sum is σ = 133408128. Its totient is φ = 9220800.

The previous prime is 40343087. The next prime is 40343113. The reversal of 40343100 is 134304.

It is an interprime number because it is at equal distance from previous prime (40343087) and next prime (40343113).

It is a super-2 number, since 2×40343100² = 3255131435220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 40343100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7506 + ... + 11705.

Almost surely, 2^40343100 is an apocalyptic number.

It is an amenable number.

40343100 is an abundant number, since it is smaller than the sum of its proper divisors (93065028).

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

40343100 is a wasteful number, since it uses less digits than its factorization.

40343100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19235 (or 19228 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40343100 is about 6351.6218401287. The cubic root of 40343100 is about 342.9702280738.

Adding to 40343100 its reverse (134304), we get a palindrome (40477404).

The spelling of 40343100 in words is "forty million, three hundred forty-three thousand, one hundred".