40147400 has 48 divisors (see below), whose sum is σ = 95351040. Its totient is φ = 15713600.

The previous prime is 40147391. The next prime is 40147403. The reversal of 40147400 is 474104.

It is a super-2 number, since 2×40147400² = 3223627453520000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (40147403) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7265 + ... + 11535.

It is an arithmetic number, because the mean of its divisors is an integer number (1986480).

Almost surely, 2^40147400 is an apocalyptic number.

40147400 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 40147400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47675520).

40147400 is an abundant number, since it is smaller than the sum of its proper divisors (55203640).

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

40147400 is a wasteful number, since it uses less digits than its factorization.

40147400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334 (or 4325 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 40147400 is about 6336.1975979289. The cubic root of 40147400 is about 342.4147584767.

The spelling of 40147400 in words is "forty million, one hundred forty-seven thousand, four hundred".