40015321430 has 64 divisors (see below), whose sum is σ = 85245972480. Its totient is φ = 13232419200.

The previous prime is 40015321427. The next prime is 40015321471. The reversal of 40015321430 is 3412351004.

It is a junction number, because it is equal to n+sod(n) for n = 40015321396 and 40015321405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2001785 + ... + 2021675.

It is an arithmetic number, because the mean of its divisors is an integer number (1331968320).

Almost surely, 2^40015321430 is an apocalyptic number.

40015321430 is an abundant number, since it is smaller than the sum of its proper divisors (45230651050).

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

40015321430 is a wasteful number, since it uses less digits than its factorization.

40015321430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20925.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40015321430 its reverse (3412351004), we get a palindrome (43427672434).

The spelling of 40015321430 in words is "forty billion, fifteen million, three hundred twenty-one thousand, four hundred thirty".