40303452 has 72 divisors (see below), whose sum is σ = 112475776. Its totient is φ = 11002464.

The previous prime is 40303433. The next prime is 40303453. The reversal of 40303452 is 25430304.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43983 + ... + 44889.

Almost surely, 2^40303452 is an apocalyptic number.

40303452 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a pronic number, being equal to 6348×6349.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40303452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56237888).

40303452 is an abundant number, since it is smaller than the sum of its proper divisors (72172324).

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

40303452 is a wasteful number, since it uses less digits than its factorization.

40303452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 40303452 is about 6348.4999803103. The cubic root of 40303452 is about 342.8578375978.

Adding to 40303452 its reverse (25430304), we get a palindrome (65733756).

It can be divided in two parts, 40303 and 452, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 40303452 in words is "forty million, three hundred three thousand, four hundred fifty-two".