406213488 has 80 divisors (see below), whose sum is σ = 1216707840. Its totient is φ = 129514176.

The previous prime is 406213481. The next prime is 406213499. The reversal of 406213488 is 884312604.

It is a super-2 number, since 2×406213488² = 330018795666252288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406213481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10506 + ... + 30377.

It is an arithmetic number, because the mean of its divisors is an integer number (15208848).

Almost surely, 2^406213488 is an apocalyptic number.

406213488 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

406213488 is an abundant number, since it is smaller than the sum of its proper divisors (810494352).

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

406213488 is a wasteful number, since it uses less digits than its factorization.

406213488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40923 (or 40911 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 406213488 is about 20154.7385991483. The cubic root of 406213488 is about 740.6018284050.

The spelling of 406213488 in words is "four hundred six million, two hundred thirteen thousand, four hundred eighty-eight".