40245431400 has 144 divisors (see below), whose sum is σ = 142271251200. Its totient is φ = 10167258240.

The previous prime is 40245431393. The next prime is 40245431453. The reversal of 40245431400 is 413454204.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 554184 + ... + 622583.

It is an arithmetic number, because the mean of its divisors is an integer number (987994800).

Almost surely, 2^40245431400 is an apocalyptic number.

40245431400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40245431400 is an abundant number, since it is smaller than the sum of its proper divisors (102025819800).

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

40245431400 is a wasteful number, since it uses less digits than its factorization.

40245431400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176808 (or 1176796 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40245431400 its reverse (413454204), we get a palindrome (40658885604).

The spelling of 40245431400 in words is "forty billion, two hundred forty-five million, four hundred thirty-one thousand, four hundred".