40700000 has 144 divisors (see below), whose sum is σ = 112211568. Its totient is φ = 14400000.

The previous prime is 40699991. The next prime is 40700017. The reversal of 40700000 is 704.

It is a Harshad number since it is a multiple of its sum of digits (11).

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, 1099982 + ... + 1100018.

It is an arithmetic number, because the mean of its divisors is an integer number (779247).

Almost surely, 2^40700000 is an apocalyptic number.

40700000 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 40700000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56105784).

40700000 is an abundant number, since it is smaller than the sum of its proper divisors (71511568).

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

40700000 is an equidigital number, since it uses as much as digits as its factorization.

40700000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 11.

The square root of 40700000 is about 6379.6551630946. The cubic root of 40700000 is about 343.9786357743.

Adding to 40700000 its reverse (704), we get a palindrome (40700704).

The spelling of 40700000 in words is "forty million, seven hundred thousand".