406254492 has 54 divisors (see below), whose sum is σ = 1194586848. Its totient is φ = 116072208.

The previous prime is 406254481. The next prime is 406254493. The reversal of 406254492 is 294452604.

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 (406254493) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 113388 + ... + 116915.

Almost surely, 2^406254492 is an apocalyptic number.

406254492 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

406254492 is an abundant number, since it is smaller than the sum of its proper divisors (788332356).

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

406254492 is a wasteful number, since it uses less digits than its factorization.

406254492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230327 (or 230315 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 406254492 is about 20155.7558032439. The cubic root of 406254492 is about 740.6267468420.

The spelling of 406254492 in words is "four hundred six million, two hundred fifty-four thousand, four hundred ninety-two".