406242552 has 32 divisors (see below), whose sum is σ = 1016121600. Its totient is φ = 135345504.

The previous prime is 406242541. The next prime is 406242563. The reversal of 406242552 is 255242604.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (406242541) and next prime (406242563).

It is a super-2 number, since 2×406242552² = 330066022110945408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70849 + ... + 76367.

It is an arithmetic number, because the mean of its divisors is an integer number (31753800).

Almost surely, 2^406242552 is an apocalyptic number.

It is an amenable number.

406242552 is an abundant number, since it is smaller than the sum of its proper divisors (609879048).

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

406242552 is a wasteful number, since it uses less digits than its factorization.

406242552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8595 (or 8591 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 406242552 is about 20155.4596077589. The cubic root of 406242552 is about 740.6194909879.

The spelling of 406242552 in words is "four hundred six million, two hundred forty-two thousand, five hundred fifty-two".