31422153040 has 40 divisors (see below), whose sum is σ = 75413173248. Its totient is φ = 12163413120.

The previous prime is 31422153029. The next prime is 31422153047. The reversal of 31422153040 is 4035122413.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 31422152996 and 31422153014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422153047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6332632 + ... + 6337591.

Almost surely, 2^31422153040 is an apocalyptic number.

It is an amenable number.

31422153040 is an abundant number, since it is smaller than the sum of its proper divisors (43991020208).

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

31422153040 is a wasteful number, since it uses less digits than its factorization.

31422153040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670267 (or 12670261 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 31422153040 its reverse (4035122413), we get a palindrome (35457275453).

The spelling of 31422153040 in words is "thirty-one billion, four hundred twenty-two million, one hundred fifty-three thousand, forty".