40624004842420 has 48 divisors (see below), whose sum is σ = 85350918956688. Its totient is φ = 16241887477760.

The previous prime is 40624004842391. The next prime is 40624004842429. The reversal of 40624004842420 is 2424840042604.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 153566799376 + 40470438043044 = 391876^2 + 6361638^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40624004842429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493202040 + ... + 493284400.

It is an arithmetic number, because the mean of its divisors is an integer number (1778144144931).

Almost surely, 2^{40624004842420} is an apocalyptic number.

It is an amenable number.

40624004842420 is an abundant number, since it is smaller than the sum of its proper divisors (44726914114268).

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

40624004842420 is a wasteful number, since it uses less digits than its factorization.

40624004842420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93780 (or 93778 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

The spelling of 40624004842420 in words is "forty trillion, six hundred twenty-four billion, four million, eight hundred forty-two thousand, four hundred twenty".