400748132 has 48 divisors (see below), whose sum is σ = 742452480. Its totient is φ = 189057792.

The previous prime is 400748083. The next prime is 400748141. The reversal of 400748132 is 231847004.

It is a junction number, because it is equal to n+sod(n) for n = 400748095 and 400748104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719198 + ... + 719754.

It is an arithmetic number, because the mean of its divisors is an integer number (15467760).

Almost surely, 2^400748132 is an apocalyptic number.

It is an amenable number.

400748132 is a deficient number, since it is larger than the sum of its proper divisors (341704348).

400748132 is a wasteful number, since it uses less digits than its factorization.

400748132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 400748132 is about 20018.6945628330. The cubic root of 400748132 is about 737.2653706178.

The spelling of 400748132 in words is "four hundred million, seven hundred forty-eight thousand, one hundred thirty-two".