31450214040 has 64 divisors (see below), whose sum is σ = 107829308160. Its totient is φ = 7188620160.

The previous prime is 31450214009. The next prime is 31450214051. The reversal of 31450214040 is 4041205413.

It is a super-3 number, since 3×31450214040³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 31450214040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18719526 + ... + 18721205.

It is an arithmetic number, because the mean of its divisors is an integer number (1684832940).

Almost surely, 2^31450214040 is an apocalyptic number.

31450214040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31450214040 is an abundant number, since it is smaller than the sum of its proper divisors (76379094120).

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

31450214040 is a wasteful number, since it uses less digits than its factorization.

31450214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37440752 (or 37440748 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 31450214040 its reverse (4041205413), we get a palindrome (35491419453).

The spelling of 31450214040 in words is "thirty-one billion, four hundred fifty million, two hundred fourteen thousand, forty".