400245532 has 12 divisors (see below), whose sum is σ = 700736400. Its totient is φ = 200035136.

The previous prime is 400245511. The next prime is 400245551. The reversal of 400245532 is 235542004.

It is a junction number, because it is equal to n+sod(n) for n = 400245497 and 400245506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11032 + ... + 30367.

It is an arithmetic number, because the mean of its divisors is an integer number (58394700).

Almost surely, 2^400245532 is an apocalyptic number.

It is an amenable number.

400245532 is a deficient number, since it is larger than the sum of its proper divisors (300490868).

400245532 is a wasteful number, since it uses less digits than its factorization.

400245532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43820 (or 43818 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 400245532 is about 20006.1373583208. The cubic root of 400245532 is about 736.9570268290.

Adding to 400245532 its reverse (235542004), we get a palindrome (635787536).

The spelling of 400245532 in words is "four hundred million, two hundred forty-five thousand, five hundred thirty-two".