31464450 has 120 divisors (see below), whose sum is σ = 92769732. Its totient is φ = 7879680.

The previous prime is 31464443. The next prime is 31464451. The reversal of 31464450 is 5446413.

31464450 is a `hidden beast` number, since 3 + 14 + 644 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 22155849 + 9308601 = 4707^2 + 3051^2 .

It is a super-2 number, since 2×31464450² = 1980023227605000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31464451) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 68622 + ... + 69078.

Almost surely, 2^31464450 is an apocalyptic number.

31464450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31464450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46384866).

31464450 is an abundant number, since it is smaller than the sum of its proper divisors (61305282).

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

31464450 is a wasteful number, since it uses less digits than its factorization.

31464450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 31464450 is about 5609.3181403803. The cubic root of 31464450 is about 315.6991274442.

The spelling of 31464450 in words is "thirty-one million, four hundred sixty-four thousand, four hundred fifty".