40731600 has 240 divisors, whose sum is σ = 161017472. Its totient is φ = 8570880.

The previous prime is 40731589. The next prime is 40731617. The reversal of 40731600 is 613704.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109014 + ... + 109386.

Almost surely, 2^40731600 is an apocalyptic number.

40731600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40731600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80508736).

40731600 is an abundant number, since it is smaller than the sum of its proper divisors (120285872).

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

40731600 is a wasteful number, since it uses less digits than its factorization.

40731600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 40731600 is about 6382.1313054496. The cubic root of 40731600 is about 344.0676358806.

The spelling of 40731600 in words is "forty million, seven hundred thirty-one thousand, six hundred".