400142348 has 24 divisors (see below), whose sum is σ = 741251280. Its totient is φ = 188677440.

The previous prime is 400142333. The next prime is 400142381. The reversal of 400142348 is 843241004.

It is a super-2 number, since 2×400142348² = 320227797325906208, which contains 22 as substring.

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, 35123 + ... + 45098.

It is an arithmetic number, because the mean of its divisors is an integer number (30885470).

Almost surely, 2^400142348 is an apocalyptic number.

It is an amenable number.

400142348 is a deficient number, since it is larger than the sum of its proper divisors (341108932).

400142348 is a wasteful number, since it uses less digits than its factorization.

400142348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80297 (or 80295 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 400142348 is about 20003.5583834477. The cubic root of 400142348 is about 736.8936917815.

The spelling of 400142348 in words is "four hundred million, one hundred forty-two thousand, three hundred forty-eight".